Question

Evaluate the function requested. Write your answer as a fraction in lowest terms. Find cos B.

Answer 1

Anwer: 9 / 41

Explanation:

Definition of the function (ratio) cos(x)

cos(angle) = adjacent-leg / hypotenuse

In this case:

- the angle is B,
- the adjacent-leg is 27,
- and the hypotenuse is 123

Therefore: cos(B) = 27 / 123 which can be simplified by 3 to obtain:

27 / 123 = 9 / 41

Answer: 9 / 41