angle a & b are supplementary angles. if A is 54, what is the measure of B

Question

angle a and angle b are supplementary angles. if the measure of angle a is 54, what is the measure of angle b?

 

Answer 1

Supplementary angle;

Either of two angles whose sum is 180 degrees are called supplementary angles.

Given A = 54

Required angle B

54+B = 180

Subtract 54 from each side.

54+B-54 = 180-54

B = 126