Question

estimate the measure of ∠def to the nearest 10°. answer attempt 1 out of 2

Explanation:

Step1: Visual - estimate angle

By looking at the angle $\angle DEF$, it appears to be close to 60°. A right - angle is 90° and this angle is less than a right - angle. If we consider common angle benchmarks (30°, 45°, 60°, 90°), it seems closer to 60° than to 30° or 45°.

Answer:

60°