Question

estimate the measure of this angle within 15°.

Explanation:

Step1: Recall angle - type knowledge

A right - angle is 90°. This angle is less than 90° and greater than 45°.

Step2: Make an estimate

We can estimate the angle to be around 105° (since it is close to a right - angle but larger). The range within 15° would be from 90° to 120°. A reasonable estimate within this range is 105°.

Answer:

105°