Question

estimate the measure of this angle within 15°.

Explanation:

Step1: Recall angle types

A right - angle is \(90^{\circ}\).

Step2: Compare with given angle

The given angle looks like a right - angle. Since we need to estimate within \(15^{\circ}\), and \(90^{\circ}\) is the central value.

Answer:

\(90^{\circ}\)