Question

Find the supplementary of $\frac{3}{5}$ of a right angle

Answer 1

Step 1: Finding $\frac{3}{5}$ of a right angle

A right angle measure $90°$

Thus, $\frac{3}{5}$ of a right angle is,

$90·\frac{3}{5}=54°$

Therefore, $\frac{3}{5}$ of a right angle is $54°$

Step 2: Finding supplementary of the angle

Two angles are said to be supplementary if their sum in $180°$

Let $x$ be the other angle, then,

$$\begin{gathered} 54+x=180 \\ \Rightarrow x=126° \end{gathered}$$

Therefore, $\frac{3}{5}$ of a right angle is $126°$