Question

what is the measurement of this angle?

Explanation:

Step1: Determine the scale

The protractor has two scales. Since the angle is measured from the left - hand side (where the scale starts from \(0^{\circ}\) on the left), we use the outer scale.

Step2: Read the measurement

The one arm of the angle is at \(90^{\circ}\) and the other arm is at \(55^{\circ}\). The measure of the angle is \(90 - 55\).
\(90-55 = 35\)

Answer:

\(35\)