Question

estimate the measure of $\angle klm$ to the nearest $10^\circ$.

Explanation:

Step1: Recall angle measures

A right - angle is \(90^{\circ}\), an acute angle is less than \(90^{\circ}\), and an obtuse angle is greater than \(90^{\circ}\).

Step2: Estimate \(\angle KLM\)

By visual inspection, \(\angle KLM\) is close to \(90^{\circ}\). Since \(80^{\circ}<\angle KLM < 100^{\circ}\) and it is closer to \(90^{\circ}\) than to \(80^{\circ}\) or \(100^{\circ}\) when considering the nearest \(10^{\circ}\) increment.

Answer:

\(90^{\circ}\)