Question

Construct an angle having the indicated measure.

$120$

Short answer

The figure is,

Step-by-step solution

Step 1. Given information.

The given angle is $120°$.

Step 2. Follow the ways.

Consider the line segment $\overline{AB}$.

With $A$as centre draw an arc that intersects line $\overline{AB}$at point $Q$.

Using the same radius and $Q$as centre draw an arc that intersect first arc at point $R$.

Using the same radius and $R$as centre draw an arc that intersect first arc at point $P$.

Join the line segment role="math" $\overline{AP}$

Step 3. Construct the figure.

The construction is shown below,

Therefore, the angle $120°$ is constructed.