Evaluate the function requested. Write your answer as a fraction in lowest terms.
B
123
27
A
120
Find cos B.

Answer:
d. Cos B = 9/41
Step-by-step explanation:
Recall, SOHCAHTOA.
Cos B = Adjacent length / Hypotenuse length
Adjacent length to reference angle B = 27
Hypotenuse length = 123
Cos B = 27/123 = 9/41