Question

an angle is bisected, forming two new angles. each new angle has a measure of 4°. what was the measure of the original angle?

Explanation:

Step1: Recall angle - bisection concept

The original angle is divided into two equal - sized new angles by bisection.

Step2: Use the relationship between original and new angles

If the two new angles each have a measure of $4^{\circ}$, and the original angle $\theta$ is split into two equal parts, then $\theta=2\times4^{\circ}$.

Answer:

$8^{\circ}$