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A triangle has sides AB = 12 cm. BC=18 cm, and AC = 20 cm. Find the distance of the intersection of the angular bisectors to side AB

A triangle has sides AB = 12 cm. BC=18 cm, and AC = 20 cm. Find the distance of the intersection of the angular bisectors to side AB

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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A triangle has sides AB = 12 cm. BC=18 cm, and AC = 20 cm. Find the distance of the intersection of the angular bisectors to side AB Select one: Da. 6. 58 cm b. 11.42 cm Ⓒc 10.13 cm d. 4.27 cm ✔ Your answer is correct. The correct answer is: 4.27 cm How many sides are there in a regular polygon if each exterior angle measures 20% Select one: a 21 b. 18 c. 24 ✓ Od 16 Your answer is correct The correct answers are 18, 24 Three metal spheres of radii r. 2r and 3r respectively are melted to form a new single big sphere with radius R. If the ratio of the volume to the surface area of the big sphere is 4.4. compute the value of n Select one: a: 6 cm x b. 7 cm c. 4 cm d. 5 cm Your answer is incorrect. The correct answer is 4 cm
Transcribed Image Text:A triangle has sides AB = 12 cm. BC=18 cm, and AC = 20 cm. Find the distance of the intersection of the angular bisectors to side AB Select one: Da. 6. 58 cm b. 11.42 cm Ⓒc 10.13 cm d. 4.27 cm ✔ Your answer is correct. The correct answer is: 4.27 cm How many sides are there in a regular polygon if each exterior angle measures 20% Select one: a 21 b. 18 c. 24 ✓ Od 16 Your answer is correct The correct answers are 18, 24 Three metal spheres of radii r. 2r and 3r respectively are melted to form a new single big sphere with radius R. If the ratio of the volume to the surface area of the big sphere is 4.4. compute the value of n Select one: a: 6 cm x b. 7 cm c. 4 cm d. 5 cm Your answer is incorrect. The correct answer is 4 cm
Two equilateral triangles with sides 15 cm overlap each other so that the overlapping area forms a regular hexagon. Compute the overlapping (hexagon) area. Select one: a. 58.34 cm² b. 7112 cm² c. 86.31 cm² * Ⓒd. 64.95 cm² Your answer is incorrect. The correct answer is: 64.95 cm² Find the nth term of the sequence 6, 2, -2, Select one: a 4n+8 b. 2n +8 O c. 2n +6 d.-4n+10 ✓ Your answer is correct. The correct answer is -4n+10 When the angle of elevation of the sun is 64", a telephone pole that is tilted at an angle of 9 directly towards the sun casts a shadow 21 feet long on level ground. Approximate the length of the pole. Select one: Ⓒa 37 ft b. 65 ft c. 33 ft x Od. 62 ft Your answer is incorrect. The correct answer is: 65 ft
Transcribed Image Text:Two equilateral triangles with sides 15 cm overlap each other so that the overlapping area forms a regular hexagon. Compute the overlapping (hexagon) area. Select one: a. 58.34 cm² b. 7112 cm² c. 86.31 cm² * Ⓒd. 64.95 cm² Your answer is incorrect. The correct answer is: 64.95 cm² Find the nth term of the sequence 6, 2, -2, Select one: a 4n+8 b. 2n +8 O c. 2n +6 d.-4n+10 ✓ Your answer is correct. The correct answer is -4n+10 When the angle of elevation of the sun is 64", a telephone pole that is tilted at an angle of 9 directly towards the sun casts a shadow 21 feet long on level ground. Approximate the length of the pole. Select one: Ⓒa 37 ft b. 65 ft c. 33 ft x Od. 62 ft Your answer is incorrect. The correct answer is: 65 ft
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