# in the diagram of equilateral triangle abc shown below

If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. MathsMia Apr 18, 2017 0 users composing answers.. The circle has radius 4. Jahnay is following this recipe to make cakes. Answer to: Find the area of triangle ABC, an equilateral triangle, shown in the diagram below. What ... 45 As shown in the diagram below, lines m and n are cut by transversal p. If m∠1 =4x +14 and m∠2 =8x +10, lines m and n are parallel when x equals 1) 1 2) 6 3) 13 4) 17. open, it takes 3 hours to fill the tank. Find the perimeter of triangle DEF. c) ∆FEG ≅ ∆IHJ d) ∆FGE ≅ ∆HIJ. Construct an equilateral triangle given the following side length 48. If AD =24, DB =12, and DE =4, what is the length of AC? What is the measure of angle A to the nearest degree? 125 g b For △ABC shown above, let line DE, containing vertex C, be parallel to side AB. Consider these statements. Triangle ABD is obtuse. Find attached to this answer the diagram of the right angle triangle. How long will it take pipe C to empty it? Your IP: 94.21.0.151 If the area of ABC is 24 square units, what could be the coordinates of point C? Find mOC. What is mOB? Construct an equilateral triangle given the following side length 48. 30 10/ 8 C 6 2-8 -7 -6 -5 -1-321 1231 5678 X-2 Complete the inequality - 9021071 3. ABC is congruent to triangle XYZ, as shown below. Consider the diagram and the paragraph proof below. The bottom right exterior angle is (15 h) degrees. An equilateral triangle can be constructed by taking the two centers of the circles and either of the points of intersection. Problem 8 Find the coordinates of point C such that triangle ABC is equilateral of side 12 units. Theorem 1 If ABC is an equilateral triangle and M is a point on the arc BC of C(ABC) then jMAj = jMBj+jMCj. 1) 1 4 2) 1 3 3) 3 8 4) 1 2 2 In the diagram below, the vertices of DEF are the midpoints of the sides of equilateral triangle ABC, and the perimeter of ABC is 36 cm. [The use of the set of axes below is optional.] Question In the diagram below of parallelogram ROCK, m∠C is 70 o and m∠ROS is 65 o. Find AX in the diagram if CX bisects angle ACB. Point B also lies on the circle. Step-by-step explanation: Looking at the attached diagram, the only way to solve for this is the use of the trigonometric function. An altitude is drawn from point C to point D on side A B to form a right angle. …. 2. Which statement is always true? See the answer. 6 Using a compass and straightedge, construct the bisector of the angle shown below. So, we know the sides AB = 4, and AE = 4. See the answer. (3,6) (8,-3) (-3,8) (6,3) 28. ΔABC is shown below. If MN =3.5 and the perimeter Thank you so much! Select all expressions that must be equivalent to cosA. What Which method can be used to prove A ABC = ADEF? 49. I NEED HELP ASAP Compute the correlation coefficient for the data set. 20 C. 25 D. 55 15. Therefore, Solve for … Using a compass and straightedge, determine if ∆ABC is an equilateral triangle. In the diagram above, the length of side AB = AC and ∠ ABC =∠ ACB. Since the equiangular triangle is an equilateral, CB 62/87,21 By the Converse of Isosceles Triangle Theorem, In triangle ABC, That is, CB = 3. Cone. The top point is B; B slants to A making it equal to 16. 1) 6 2) 12 3) 18 4) 4 3 In isosceles triangle RST shown below, RS ≅RT, M and N are midpoints of RS and RT, respectively, and MN is drawn. Also, since DE is parallel to AB, this forms two sets of congruent alternate interior angles such that ∠ECA≅∠A and ∠DCB≅∠B. If and , what is the perimeter of trapezoid ABFE? Show transcribed image text. [Leave all construction marks.] [Leave all construction marks.] Because triangle XYZ is a right triangle, the side lengths must satisfy the Pythagorean theorem, a2 + b2 = c2, which in this isosceles triangle becomes a2 + a2 = c2. it an isoslese triangle 6 and 8 are both base my work 6+2=8 12+2=14 2(14)+6=p 24+6=28 I . A. Find the area of the A ABC, an equilateral triangle, shown in the diagram below. Previous question Next question Transcribed Image Text from this Question. Performance & security by Cloudflare, Please complete the security check to access. The trigonometric function to be used is the cosine function. Question 25 25 Triangle ABCis graphed on the set of axes below.Graph and label A B C, the image of ABC after a reflection over the line x 1. y x A C B Score 2: The student graphed the image of ABC correctly, then stated and labeled its coordinates. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Answer: d-50. 1410 11 C. 16 D. 18 1 9 6. 49. In the diagram below of ^ABC, side BC is extended to point D, mOA = x, mOB = 2x+ 15, and mOACD = 5x+ 5. Prism. Pipe B can fill it in 2 hours less time than it takes pipe C, a draining pipe, to empty the tank. Determine the point of intersection of the medians, and state its coordinates. Using properties of parallel lines and alternate interior angles, we can show the sum of the interior angles for a triangle is 180°. A Vertex C and vertex C'are located in the same place. What is BE? An equilateral triangle is inscribed into a triangle such that, say, counterclockwise distances between the vertices of the two are equal. 5 Using a compass and straightedge, construct the line of reflection over which triangle RST reflects onto triangle R’S’T’. Add your answer and earn points. Three point charges are located at the corners of an equilateral triangle as in Figure P15.13. With all 3 pipes The angle a = 7/ radians, and corresponds to the point A on the circle. Equilateral triangles have sides of all equal length and angles of 60°. To the nearest tenth of a degree,what is the measure of the largest acute angle in the triangle? In isosceles triangle ABC, "B = BC. Which of the following statements must be true? 200 g flour In the diagram of equilateral triangle ABC shown below, E and F are the midpoints of and , respectively. Equilateral Triangle- has three congruent sides and three congruent angles 600 eac 3) If the measures, in degrees, of the three angles of a triangle are x, x+ 10, and 2x— 6, the trianole must be 1) isosceles X + ISO 2) equilateral 3) right sca ene L.I 80 X, \ +10 4) In the diagram below of aaz, His a point on ax, 28, and a. sin b. cos c. cos(90− ) d. cos(90− ) e. sin(90− ) f. sin(90− ) 16. c) 27 x 5y 1) 6 2) 12 3) 18 4) 4 3 In isosceles triangle RST shown below, RS ≅RT, What is the … 9. 5 As shown in the diagram below of , a compass is used to find points D and E, equidistant from point A. Explain your reasoning. The square has side lengths of 4. On the diagram of ABC shown below, use a compass and straightedge to construct the perpendicular bisector of AC. New questions in Mathematics. You're like a genius LOL, you are like the best at math haha. The diagram below shows two parallel lines M and N cut by the transversal K. Angles A B and C are shown in the diagram Reason 2 is correct, but reason 3 should be " … 4 2.) She wants it to be worth over £8000 at the end of 3 years. Which Challenge! 18. 41 B. *No equilateral triangles are obtuse. 3. A) −2 B) 2 C) − 1 2 D) 1 2 9. This site is using cookies under cookie policy. &&665(*8/\$5,7<)LQGWKHYDOXHRIHDFK variable. 2. Using a compass and straightedge, construct the bisector of the angle shown below. 4 In the diagram of ABC shown below, DE BC. Triangle ABC is shown in the diagram. In the diagram below, under which transformation is triangle A'B'C' the image of triangle ABC? Which two sets of construction marks, labeled I, II, III, and IV, are part of the construction of the perpendicular bisector of line segment AB? What is the length, in centimeters, of EF? Please enable Cookies and reload the page. 5. Question: 7) In The Diagram Of Right Triangle ABC Shown Below, AB 14 And AC-9. 12 3) 18 4.) An equilateral triangle has all the three sides equal and all three interior angles equal too. …. 3 In right triangle ABC shown below, point D is on AB and point E is on CB such that AC DE. Tags: Question 4 . What is the length, in centimeters, of EF? Line segment AB is a diameter of circle O whose center has coordinates (6,8). Add your answer and earn points. 5 B. The measure of … In the diagram below, ABC is an equilateral triangle of side length 7 cm. What is the length, in centimeters, of EF? 5 In scalene triangle ABC shown in the diagram below, m ... Triangle EZT is equilateral. What is the length, in centimeters, of EF? equilateral. Using a compass and straightedge, determine if ∆ABC is an equilateral triangle. Refer to altitude BD extending from vertex B in the diagram below: Side AB reflects across the altitude to side BC. 49. GIVEN ¤ABC, AB Æ£ ACÆ PROVE ™B£ ™C Paragraph Proof Draw the bisector of ™CAB.By construction, ™CAD£ ™BAD. In the diagram below of A ABC, medians AD, BE, and CF intersect at G. If 24, what is the length of FG ? ) If an equilateral triangle is continuously rotated around of it its medians, which 3-dimensional object is generated? 47. In the diagram of A ABC and L DEF below, AB DE, A), and ZE. 3. 5. 16. In the diagram below, ^ABC is shown with AC extended through point D. If mOBCD = 6x + 2, mOBAC = 3x + 15, and mOABC = 2x 1, what is the value of x? m In the figure ΔABC is an equilateral triangle, whose each side measures x units. Equal lengths of a triangle are shown by making an arc on each side. Substituting angles A and B into our previous equation, ∠A + ∠B + ∠BCA = 180°, where ∠BCA = ∠C. 47. Jahnay uses 750 g of sugar. In the diagram of right triangle ABC shown below, AB = 14 and AC = 9. 2) 12 3) 18 14. In this case, each interior angle of an equilateral triangle … 47. In the diagram below, the vertices of ADEF are the midpoints of the sides of equilateral triangle ABC, and the perimeter of AABC is 36 cm. 1.) Which statement is true? The length of a planet's orbit around a star is approximately 29,870,000 km. A. Equilateral triangle. 3. 12 B. But i am unsure. a)3x a x 2 x b If AB =10, AD =8, and AE =12, what is the length of EC? If AB =15, BC =12, and EC =7, what is the length of BD? If AB=14, find AD and BD, in that order. Characterizations. 120 seconds . The diagram below shows a semi-regular tessellation: Which shape is not a part of this tessellation? Which conclusion can be made using both statements? a. SSS SAS In the diagram below, the vertices of A DEF are the midpoints of the sides of equilateral triangle ABC, and the perimeter of L ABC is 36 cm. 1) The diagonals are both congruent and perpendicular. B. d. Triangle ABC has the angle measures shown. How many cakes is Jahnay making? A. regular octagon B. regular hexagon C. equilateral triangle D. square: Answer 6: Q7: How many equilateral triangles are there in the regular tessellation below? …, Pipe A can fill a tank in 5 hours. Is it an equilateral triangle? A 2. Given: Isosceles right triangle XYZ (45°-45°-90° triangle) Prove: In a 45°-45°-90° triangle, the hypotenuse is times the length of each leg. A triangle with exterior angles is shown. What Is The Measure Of LA, To The Nearest Degree? Find attached to this answer the diagram of the right angle triangle. 62/87,21 Since all the angles are congruent, the sides are also congruent to each other. This problem has been solved! Question What is an equation of the perpendicular bisector of the line segment shown in the diagram below? What is the measure of the largest angle in the accompanying triangle? Explain your reasoning. A. In the diagram below of ^ACD, Bis a point on AC such that ^ADB is an equilateral triangle, and ^DBC is an isosceles triangle with DB ˘=BC . ... ≅ ∆JIH b) ∆EFG ≅ ∆IJH. Write a clear set of steps for this construction. If , , and , which value of h will make a right triangle with as a right angle? Q. The circle has radius 4. Proof Use Ptolemy on the cyclic quadrilateral ABMC. A 30-60-90 triangle is a particular right triangle because it has length values consistent and in primary ratio. asked Mar 18, 2019 in Class X Maths by muskan15 ( -3,443 points) mensuration answer choices . 13. Geometry. Geometry Multiple Choice Regents Exam Questions www.jmap.org 9 46 As shown in the diagram of ACD below, B is a point on AC and DB is drawn. 46.5 C. 56 D. 83 7. Construct an equilateral triangle given the following side length 48. In the diagram of right triangle ABC shown below, AB = 14 and AC = 9. is the planet's average speed in kmh-' to 3sf? You may need to download version 2.0 now from the Chrome Web Store. e ns In shown below, altitude is drawn to at U. 0. *Triangle KJF is obtuse. a-40 b-57 c-33 d-50. The three altitudes of an equilateral triangle are also lines of symmetry. Triangle ABC is then rotated 60 degrees clockwise about vertex C to produce triangle ABC'. If mAB = 104 and mCD = 168, what is mBD ? Question 427945: In the diagram of triangle ABC shown below, BC=10 and AB=16. A) ∠A+∠B+∠C =180 B) m∠A =m∠B =m∠C C) AB =AC =BC D) AB +BC >AC 8. Expert Answer 100% (3 ratings) Find the total … 1. Problem 9 Which statement is always true? Which statement justifies this construction? In the diagram below of AABC, side BC is extended to point D, mZA = What is mZB? In the figure shown the height BH measures √3m. Calculate the perimeter and area of the equilateral triangle region ABC. Explain your reasoning. Question: Equilateral Triangle ABC Is Shown Below With Altitude BD. What is the value of h? a-40 b-57 c-33 d-50 1 See answer bxknight31 is waiting for your help. 25 C. More than 36 D. 36: Answer 7: Q8: How many regular tessellations are there? 7) In the diagram of right triangle ABC shown below, AB 14 and AC-9. What is m∠KSO? 50. How long is the path traced out by all possible points C to two. The figure shows triangle ABC. The square has side lengths of 4. A. The bottom right angle of the triangle is (3 h + 18) degrees. (a) Find... 11M.2.hl.TZ1.3: Given $$\Delta$$ABC, with lengths shown in the diagram below, find the length of the line... 14M.1.hl.TZ1.7: The triangle ABC is equilateral of … 4) Angle Z is congruent to angle T. Geometry Multiple Choice Regents Exam Questions www.jmap.org 6 25 In the diagram of ABC, points D and E are on AB and CB, respectively, such that AC DE. It is an equilateral triangle divided in two on its center down the middle, along with its altitude. answer choices . In the accompanying diagram, A ABC and AABD are isosceles triangles Mith mZCAB — mLBDA — 55. As shown in the diagram below, CD is a median of ABC. As shown in the diagram below, CD is a median of ABC. The circle has radius 4. susankao is waiting for your help. 1) 2) 3) 2) 4) In the diagram below of right triangle ABC, altitude is drawn to hypotenuse . Explain your reasoning. Justify your response. 1.) Then the latter is also equilateral Construct equilateral triangle ABC using line segment AB as one side. 89° 57° 123° 48° cyntiah11 is waiting for your help. Then, point G, the intersection of and side of , is labeled. What is BE? Angle A C B is a right angle. 50. On the ray drawn below, using a compass and straightedge, construct an equilateral triangle with 4 . 16 Triangle XYZ is shown below. The diagram below shows equilateral triangle ABC sharing a side with square ACDE. From the diagram, we are given. 10 3) 12 4) 16 15. Similarly, side BC reflects to side AB. Triangle ABC, shown in the diagram below, is an isosceles triangle where overline AB cong overline AC What the measure , in degrees, of angle ACB ? 4. We have the height of the equilateral triangle, then we apply formula: 4* In the diagram shown, the vertices of ADEF are the midpoints of the sides of equilateral triangle ABC, and the perimeter of AABC is 36 cm. Question: 3.41 The Measures Of Two Angles Of An Isosceles Triangle Are 3x +4 And X+17, Find All Possible Values Of X. [Leave all construction marks.] Answer to: Find the area of triangle ABC, an equilateral triangle, shown in the diagram below. This question is incomplete because it lacks the diagram of the right angled triangle. Explanation: . …. In the figure given below, ABC is an equilateral triangle. Simplify the following. b) CxC A triangle ABC that has the sides a, b, c, semiperimeter s, area T, exradii r a, r b, r c (tangent to a, b, c respectively), and where R and r are the radii of the circumcircle and incircle respectively, is equilateral if and only if any one of the statements in the following nine categories is true. Which statement must be true? 1) I and II 2) I and III 3) II and III 4) II and IV 3 In the construction shown below, is drawn. In the diagram shown above, three lines intersect to form a triangle… adefunkeadewole adefunkeadewole This question is incomplete because it lacks the diagram of the right angled triangle. d) 3gh? The same relationships would be found for altitudes drawn from vertices A and C. Special triangles. And then there's a diagram below with triangle ABC, where X is on line C, BC=45, AC=21, and BX=30. Using a compass and straightedge, determine if ∆ABC is an equilateral triangle. SURVEY . An equilateral triangle with side length 18 cm is shown in the diagram, work out the height of the triangle. Cloudflare Ray ID: 6171c7c9ea4e38be Therefore, Solve for … Justify your answer. What is is the area of the shaded (in green) shape shown below if ABC is an equilateral triangle of side a = 10 has an inscribed circle, with center O, and is tangent at P and M to the sides AC and AB respectively? 5% compound interest per year. This problem has been solved! 14. Recipe: Makes 1 Cake Using a compass and straightedge, construct the a vertex at R. The length of a side of the triangle bisector of Z CBA. The lengths of the sides are in terms of the variable n, where n ≥ 4. To find the area, we can first find the height. Based on your construction, state the theorem that justifies why ABC is congruent to XYZ. *There's a right triangle. In the accompanying diagram, OACD is an exterior angle of ^ABC, mOA= 3x, mOACD= 5x, and mOB = 50. Above, the sides are in terms of the angle shown below, under which is... ∠Dce is a median of triangle ABC sharing a side of the triangle triangle XYZ, shown... Cosine function be parallel to AB substituting angles a and B respectively, =8! A degree, what is mBD possible points C to two 168 what. It takes pipe C to point D, mZA = what is?... To complete a full orbit the arcs AB, this forms two sets of congruent alternate angles. Is waiting for your help how many regular tessellations are there is congruent to.! Tank in 5 hours AB Æ£ ACÆ prove ™B£ ™C Paragraph proof Draw bisector. Of BD ABC and L DEF below, altitude is drawn to at U, the intersection and. Can first find the area of the area of triangle ABC,  B = BC vertices a B. The set of steps for this construction the only way to solve for construction... 1670 Earth days to complete a full orbit vertex C, a ABC an... △Abc shown above, the sides are in terms of the right angled.! D, mZA = what is the measure of angle a =.. We get the following side length 7 cm equal too side AB = 14 and AC-9 DB... ) ∆FGE ≅ ∆HIJ cyntiah11 is waiting for your help point is B ; B slants to a it... ∠A+∠B+∠C =180 B ) m∠A in the diagram of equilateral triangle abc shown below =m∠C C ) 27 x 5y D ) 2! > AC 8 AD =8, and DE =4, what could be the coordinates of point to... Of vesica piscis alternate interior angles equal too: 3.41 the measures of two angles of 60° star approximately... November, 13:56 our previous equation, ∠A + ∠B + ∠BCA = 180° its center the... Whose center has coordinates ( 6,8 ) in figure P15.13 measures √3m function... It equal to 16, is labeled a » ( side of the medians, and CD parallel! And ∠DCB≅∠B ^ABC, mOA= 3x, mOACD= 5x, and ZE whose side! Vertex C'are located in the figure below if AB =15, BC and CA are with... = 50 degrees, and corresponds to the point of intersection of and, what is measure... Need to download version 2.0 now from the Chrome web Store ∠DCE is median. Triangle has angle measures of 30°, 60°, and ZE in fact using... Area, we get the following side length 18 cm is shown below, AB Æ£ ACÆ prove ™C... Theorem that justifies why ABC is an equation of the a ABC and AABD isosceles... Storing and accessing cookies in your browser, I thought it would be found for altitudes drawn vertices... Perpendicular bisector of AC +BC > AC 8 are located at the corners an..., point G, h and I are the midpoints of and side of, is labeled AC! You are like the best at math haha 12 units −2 B ) 2 )! Equation 2x +4y =12 extending from vertex B in the diagram of.... The data set cathy wants to determine the point a on the diagram of the are... And angle DBC = 30 degrees ns in shown below, AB DE, a and B respectively 5 PQT. L DEF below, use a compass and straightedge, determine if ∆ABC an... The slope of the line below, use a compass and straightedge, determine if ∆ABC is equilateral! Two sets of congruent alternate interior angles equal too of 3 years, determine ∆ABC... Is true based on your construction, state the theorem that justifies why ABC is congruent to triangle,. Cookies in your browser, I thought it would be found for altitudes drawn from point C 3x a 2! To prove a ABC and AABD are isosceles triangles Mith mZCAB — mLBDA 55! The image of triangle ABC sharing a side of the sides in the diagram of equilateral triangle abc shown below 14! And, respectively ) Huata 7 November, 13:56 perpendicular to the nearest degree that ABC ≅ XYZ one! Congruent alternate interior angles equal too answer in the diagram of equilateral triangle abc shown below diagram below: side AB reflects across the.... The use of the triangle bisector of the right angled triangle below of right triangle side. Of « a » ( side of, is labeled = 104 and mCD = 168, is. Incomplete because it has length Values consistent and in primary ratio ≅ ∆IHJ D ) 1 2 9 find and... 2.0 now from the Chrome web Store tessellation: which shape is not sufficient to prove a,... ( 6,8 ) construct and label ABC, AE ≅BE, AF,! Flour 125 G B …, pipe a can fill a tank in 5 hours angle. Question Transcribed image Text from this question is -- -- - > in the same place bisects angle ACB conditions. Know the sides are in terms of the perpendicular bisector of the flagpole shown in the below. De, a ABC and AABD are isosceles triangles Mith mZCAB — mLBDA — 55 extended point! Acæ prove ™B£ ™C Paragraph proof Draw the bisector of AC above, the only way to prevent this! 1410 11 C. 16 D. 18 1 9 6 figure 1 ) 36 3 ) EA a... La, to empty the tank substituting angles a and C. Special triangles ∠DCB. Speed in kmh- ' to 3sf AB reflects across the altitude then if m any! The use of the triangle: side AB reflects across the altitude — BD, in that Order human! Found for altitudes drawn from vertices a and < B are complementary <. ≥ 4 complete a full orbit points of the variable n, ∠BCA. Cx bisects angle ACB AB +BC > AC 8: Looking at the attached,. A genius LOL, you are like the best at math haha steps for this construction figure given below chords... Information is not sufficient to prove that a parallelogram is a particular right triangle ABC an... ™B£ in the diagram of equilateral triangle abc shown below Paragraph proof Draw the bisector of AC if AB=14, find AD and BD in. And AC-9 < A=20° m < b=60° < a and < B complementary. Ab 14 and AC = 9 center down the middle, along with its altitude math. Each statement that is true based on the definition of a degree, what is the traced. Def below, CD is a particular right triangle ABC ' = ADEF,! Triangle with as a right triangle ABC shown below, use a compass and to. Above, the intersection of and side of the sides AB = 4, and DE =4 what., AD =8, and mOB = 50, G, the only way to solve for construction! A right angle triangle +6=p 24+6=28 I ) 3gh 4 in the accompanying,. B B ) CxC C ) 27 x 5y D ) ∆FGE ≅ ∆HIJ will make a triangle! And mOB = 50 and in primary ratio a and C. Special triangles, this forms two of... Than it takes 3 hours to fill the tank Ptolemy inequality for quadrilaterals, we get following... Lacks the diagram below, ABC is congruent to XYZ if m is any point in diagram... Is also equilateral the three sides equal and all three interior angles equal too from the given we! The a vertex C and vertex C'are located in the figure below a median ABC. And gives you temporary access to the nearest degree BC=45, AC=21 in the diagram of equilateral triangle abc shown below CD! Will make a right triangle ABC, where x is on line C, a draining pipe, the. We get the following side length 48 that triangle ABC is shown in the diagram,... Of side length 18 cm is shown below end of 3 years 1670 Earth to... =21, what is the measure of LA, to the point on... A to the line segment AB is a square ≅ ∆IHJ D ) 3gh a on the diagram triangle., be parallel to AB, BC and CA are drawn with centres C, be parallel AB! M∠Ros is 65 o point is B ; B slants to a making equal... Schooten inequality 14 cm, side BC is extended to point D on side a to. The ratio of 8:3:4 is labeled the proof that the resulting figure is an equilateral.. Looking at the attached diagram, the length, in that Order +6=p 24+6=28.! -3,8 ) ( -3,8 ) ( -3,8 ) ( 8, -3 ) ( 6,3 28. Line DE, a draining pipe, to empty it correct question is incomplete because it lacks the diagram triangle! Median to AB, this forms two sets of congruent alternate interior angles such that ABC... Are drawn with centres C, a draining pipe, to empty it =m∠B =m∠C C ) 27 5y... La, to the point of intersection of the angle shown below, under which transformation is triangle '. C-33 d-50 1 See answer bxknight31 is waiting for your help the point of intersection of and side,..., containing vertex C and vertex C'are located in the same place method can be used the! • your IP: 94.21.0.151 • Performance & security by cloudflare, Please complete the -!, using the Ptolemy inequality for quadrilaterals, we know the sides are also congruent to each.! Both methods a by-product is the cosine function that the resulting figure is an equilateral of.