Final answer:
The sum of the angles in a square (ABCD) is 360° because there are four right angles in a square, each measuring 90°.
Step-by-step explanation:
The question asks about the sum of the angles in a square (ABCD). A square is a polygon with four equal sides and four equal angles. By definition, each angle in a square is a right angle, which means it measures 90 degrees. Therefore, to find the sum of the angles in a square, you need to add up the angles:
- Angle at corner A: 90°
- Angle at corner B: 90°
- Angle at corner C: 90°
- Angle at corner D: 90°
When these angles are added together, they total:
90° + 90° + 90° + 90° = 360°
Therefore, the answer is c) 360°, which is the sum of the angles in a square.