Question

estimate the measure of this angle within 10°.

Explanation:

Step1: Recall angle types

Obtuse angles are between \(90^\circ\) and \(180^\circ\). This angle is obtuse.

Step2: Compare to known angles

A right angle is \(90^\circ\), and this angle is wider than a right angle but less than \(180^\circ\). Estimating, it's around \(120^\circ\) (within \(10^\circ\) of the actual, likely between \(110^\circ - 130^\circ\), but a common estimate is \(120^\circ\)).

Answer:

\(120^\circ\) (or a value within \(10^\circ\) of the actual, e.g., \(110^\circ - 130^\circ\) range, but \(120^\circ\) is typical)