15) How would you classify a triangle by it's ANGLES if they measured 30 90°, 60°? * Your answer 16) How would you classify a triangle by its ANGLES if they measured 29", 24, 127 ? Your answer 17) If a triangle is equilateral it must also be 5. acute

15) How would you classify a triangle by it's ANGLES if they measured 30 90°, 60°? * Your answer 16) How would you classify a triangle by its ANGLES if they measured 29", 24, 127 ? Your answer 17) If a triangle is equilateral it must also be 5. acute

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

ChapterP: Preliminary Concepts

SectionP.CT: Test

Problem 1CT

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15) How would you classify a triangle by it's ANGLES if they measured 30O
90°, 60°? *
Your answer
16) How would you classify a triangle by its ANGLES if they measured 29°,
24, 127 ?
Your answer
17) If a triangle is equilateral it must also be
5.
acute

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EXAMPLE 4 Find a hypotenuse using an angle of depression SKIING You are skiing on a mountain with an altitude of 1200 meters. The angle of depression is 21°. About how far do you ski down the mountain? 21 1200 ft Not drawn to scale Solution opp. һуp. Write ratio for sine of 21". sin 21° sin 21° 1200 Substitute. x• sin 21° 1200 Multiply each side by x. 1200 sin 21° Divide each side by sin 21°. 1200 Use a calculator to find sin 21°. 0.3584 x- 3348.2 Simplify. You ski about 3348 meters down the mountain.