The answer is 90 a triangle is 180 degrees a we know that A is a right angle is 90 and B is 45 so that leaves us with 45 degrees on C. But since we are measuring BC we add them up and that equals 90 <span />
To do this, divide 15 by 120. You get 0.125 Then turn the decimal into a percent. You do this by moving the decimal point to places to the RIGHT. You get 12.5% as your answer.
