Question

question 10 of 10 which angles are right? check all that apply. a. ∠gfe b. ∠klj c. ∠mlk d. ∠efh

Explanation:

Step1: Recall right - angle definition

A right - angle measures 90 degrees and is indicated by a small square at the vertex of the angle.

Step2: Examine each angle

In the first figure, there is no square at the vertex of $\angle GFE$ and $\angle EFH$, so they are not right - angles. In the third figure, there is a small square at the vertex of $\angle KLJ$ and $\angle MLK$, which means they are right - angles.

Answer:

B. $\angle KLJ$, C. $\angle MLK$