Question

What is cos B?

A. 8/15
B. 15/8
C. 8/17
D. 15/17

Answer 1

• cosØ=Base/Hypotenuse
• cosB=BC/AB
• cosB=8/17

Hence option C is correct

Answer 2

C. 8/17

Explanation:

Given:

Hypotenuse = 17

BC = 8

Cos (B) = leg adjacent to ∠B / hypotenuse

= BC/BA

Substitute

Cos (B) = 8/17