Question

In ABC, C is a right angle, what is the measure

Answer 1

67.6 degrees

Explanation:

You need to use cosine to solve this.

so, cosine is adjacent leg over hypotenuse. which is 8/21. and it is 0.381.

and when you do cos^-1 (0.381), then it is 67.6.

Answer 2

The answer is 67.6

You have to find the angle that has cos=8/21=0.381.