Question

which statement is true about the given information? ∠ced measures 45°. ∠aec measures 90°. ∠ced measures 180°. ∠aec measures 45°.

Explanation:

Step1: Identify right - angle symbol

The red square at point E between lines AC and AD indicates a right - angle.

Step2: Recall angle measure of a right - angle

A right - angle measures 90°. The angle ∠AEC is a right - angle.

Answer:

∠AEC measures 90°.