Question

If an angle differs from its complement by ${10}^o$, find the angle.

Answer 1

Let required angle be $x$
So , $x+x+10°=90°$
$2x=90°-10°$
$2x=80°$
$x=40°$
So , $x+10°=50°$

So the required angle is either $50°$ or $40°$