Question

what is the measure of this angle? m∠ab

Explanation:

Step1: Read the protractor

When measuring an angle with a protractor, we look at the scale. The side \(BC\) is aligned with \(0^{\circ}\) (on the outer - scale), and the side \(BA\) points to \(70^{\circ}\) on the outer - scale.

Answer:

\(70^{\circ}\)