Question

identifying and classifying angles mastery check how many right angles are in this shape? a 2 b 3 c 4

Explanation:

Step1: Recall right - angle definition

A right - angle measures 90 degrees.

Step2: Examine the shape

In the given blue - colored shape, we look at the corner angles.

Step3: Count right - angles

The top - left corner is not a right - angle. The other three corners (top - right, bottom - right, bottom - left) are right - angles.

Answer:

B. 3