Question

rectangle abcd has four right angles. 1. what is the sum of its angle measures?

Explanation:

Step1: Recall measure of right - angle

A right - angle measures 90 degrees.

Step2: Calculate sum of angles

Since there are 4 right - angles in rectangle ABCD, the sum of the angle measures is \(4\times90^{\circ}\).
\(4\times90 = 360\)

Answer:

360 degrees