Question

The equation cos (35 degree)= a/25 can be used to find the length of Line segment B C. Triangle A B C is shown. Angle A C B is a right angle and angle C B A is 35 degrees. The length of C B is a and the length of hypotenuse A B is 25 inches. What is the length of Line segment B C? Round to the nearest tenth. 14.3 in. 20.5 in. 21.3 in. 22.6 in.

Answer 1

20.5

Explanation:

cos(35) = a/25

(25)cos(35) = a/25(25)

20.5 = a

Answer 2

20.5 Inches

Explanation:

I just took the review so this is a verified answer.