Question

Find the complement angle of $\frac{1}{5}$ right angle .

Answer 1

Finding the complement angle :

Complement angle : Two angles are called complementary when their measures add to $90°$.

Now, the angle is

$\frac{1}{5}rightangle=\frac{1}{5}\times 90°=18°$

Let the unknown angle be $x$

Then,

$$\begin{gathered} 18°+x=90° \\ x=90°-18° \\ x=72° \end{gathered}$$

Hence, complement angle of $\frac{1}{5}$ right angle is $72°$.