Angle A & Angle B are complementary. If angle A = 2x+4 and angle B= 36 find x.

Answer 1

A+B = 90

2x+4 + 36 = 90

2x = 90-40= 50

2x=50

x =50/2 = 25

angle A = 90-36 = 54

2x+4 = 2(50)+4 = 54

"complementary angle" means the two angles sum to 90 degrees, which are sides of a right triangle, with the 3rd angle = 90

supplementary angle means the two angles sum to 180 degrees