Question

estimate the measure of this angle within 15°.

Explanation:

Step1: Recall angle types

An acute angle is less than \(90^{\circ}\), a right angle is \(90^{\circ}\), an obtuse angle is between \(90^{\circ}\) and \(180^{\circ}\). This angle is obtuse.

Step2: Estimate within \(15^{\circ}\)

Common angle estimates: \(105^{\circ}\) (since it's more than \(90^{\circ}\) but not close to \(120^{\circ}\) or \(135^{\circ}\) etc. A rough visual check shows it's about \(105^{\circ}\))

Answer:

\(105\)