Question

For triangle ABC, what is the value of cosC?

0.5
0.6
0.8
0.9

Answer 1

By SOHCAHTOA, we have:
\[\cos{C}=\frac{\text{adjacent}}{\text{hypotenuse}}=\frac{72}{90}=?\]

Answer 2

0.8?

Answer 3

Yep. :D