Question

I need some help please

Answer 1

cosine is adjacent over hypotenuse, so the answer is a/c. hope that helps!

Answer 2

Remember SOCAHTOA

In this case, you are using Cos, or CAH

Cos = adjacent/hypotenuse

You are using B as your starting point.

The adjacent of B is a, while the hypotenuse (the longest side) is c

a/c = cos, and should be your answer


hope this helps