the angle which exdees its complementary angle by (30)degree is : (a)50 angle (B120 angle (c)60 angle (d)80 angle?

x = (90-x) + 30

2x = 120

x = 60...................ANS (Option C)

let angle = x
x - [ 90 - x ] = 30
2x = 120
x = 60______Option (c)

Complementary means that they add up to 90 degrees. so: x + (x-30) = 90. 2x - 30 = 90. 2x = 120. x = 60. The angle 60 degrees exceeds its complement (30 degrees) by 30 degrees.