Question

Analyze the diagram below and answer the question that follows.

What is the value of cosA in the triangle above?

A. cosA = 0.5
B. cosA = 1
C. cosA ≈ 0.707
D. cannot be determined without side lengths

Answer 1

C

Explanation:

the cos of an angle of 45° is equal to √2/2~=0,7071

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