Question

Find COS B. round to 2 decimal places. PLS HELP. will award brainliest

Answer 1

Answer:

Step-by-step explanation:

Cos is a/h so first we need the length of CB to get the adjacent value.

12^2 + b^2 = 30^2

144 + b^2 = 900

b^2 = 756

b = 27.4954 or 27.5

cos of 27.5/30 = 0.9998 or 1