Final answer:
In a square, all angles are right angles and measure 90 degrees, including angle M and angle A. Therefore, angle M is equal to angle A.
Step-by-step explanation:
To prove that angle M is equal to angle A in a square, we can start by considering the properties of a square. In a square, all angles are right angles and measure 90 degrees. Therefore, angle M and angle A are both right angles.
Since angle M and angle A are both right angles, they are equal to each other, as they both measure 90 degrees.