If A is the dgree measure of an acutre angle and sin A =0.8, then cos(90-A) = a) 0.2 b) 0.4 c) 0.5 d) 0.6 e) 0.8
If A is the dgree measure of an acutre angle and sin A =0.8, then cos(90-A) = a) 0.2 b) 0.4 c) 0.5 d) 0.6 e) 0.8
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter3: Triangles
Section3.4: Basic Constructions Justified
Problem 22E
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If A is the dgree measure of an acutre angle and sin A =0.8, then cos(90-A) =
a) 0.2
b) 0.4
c) 0.5
d) 0.6
e) 0.8
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