Question

an angle is equal to 8 times its complement determine its measure

Answer 1

Let the angle be x
Complementary angle = 90-x
Given
x = 8(90-x)
x = 720-8x
-720 = -8x-x
-720= -9x
x= 80 degrees
proof:-
angle proved above = 80 degrees
Complement = 10 degrees
Thus angle = 8* Complement

I have solved this question along with proof .....