Question

If an angle is 8 times its complement, then find its measure.

Answer 1

let the unknown angle x

8(90-x)=x

720-8x=x ⇒ 720=x+8x ⇒720=9x ⇒x=80

therefore the angle is 80 degrees

Proof :complement of 80 degree is10.  10×8=80

Answer 2

very simple its 8 times
comp.is 90 so 10×8=80