Question

estimate the measure of this angle within 15°.

Explanation:

Step1: Recall angle types

An acute angle is less than \(90^{\circ}\).

Step2: Estimate based on common angles

A \(30^{\circ}\) angle is a common acute - angle reference. This angle looks similar in size to a \(30^{\circ}\) angle (within the \(15^{\circ}\) margin, \(30^{\circ}\) is a valid estimate as \(15^{\circ}<30^{\circ}<45^{\circ}\)).

Answer:

\(30^{\circ}\)