Question

choose all answers that describe the polygon below.

Explanation:

Step1: Analyze side - lengths

All side - lengths are 15, so it has equal side - lengths.

Step2: Analyze angles

The angle - marking shows all angles are equal.

Step3: Recall polygon definitions

A polygon with all equal side - lengths and all equal angles is a regular polygon. A regular quadrilateral (4 - sided polygon) is a square.

Answer:

Regular polygon, Square