72 In the applet above right triangle ABC is drawn with a 72° angle. For right triangles with an angle of 72°, the ratio of the side opposite the 72° angle compared to the hypotenuse is 19/20. If another triangle is drawn, DEF and the hypotenuse, EF, has a length of 100, what is the length of the side opposite the 72° angle, DF?

72 In the applet above right triangle ABC is drawn with a 72° angle. For right triangles with an angle of 72°, the ratio of the side opposite the 72° angle compared to the hypotenuse is 19/20. If another triangle is drawn, DEF and the hypotenuse, EF, has a length of 100, what is the length of the side opposite the 72° angle, DF?

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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Question

72
In the applet above rìght triangle ABC is drawn with a 72° angle. For right triangles with an angle of 72°, the ratio of the side opposite the 72° angle
compared to the hypotenuse is 19/20. If another triangle is drawn, DEF and the hypotenuse, EF, has a length of 100, what is the length of the side
opposite the 72° angle, DF?

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