Question

estimate the measure of this angle within 10°.

Explanation:

Step1: Identify angle type

The angle is obtuse (greater than \(90^\circ\), less than \(180^\circ\)). A right angle is \(90^\circ\), straight is \(180^\circ\).

Step2: Estimate deviation

Compare to \(90^\circ\); this angle is wider than a right angle. A \(120^\circ\) angle (or \(130^\circ\), but \(120^\circ\) is common for such a bend) fits within \(10^\circ\) error (e.g., \(110^\circ - 130^\circ\) range, \(120^\circ\) is central).

Answer:

\(120^\circ\) (or a value between \(110^\circ\) and \(130^\circ\) is acceptable, but \(120^\circ\) is a typical estimate)