A shape has a notch on its left side. After a 180-degree rotation, where is the notch?

A shape has a notch on its left side. After a 180-degree rotation, where is the notch?

• A. Top
• B. Left
• C. Right
• D. Bottom

Answer: (C)

Rotating a shape 180 degrees is a half-turn, which moves every point to the opposite side: left becomes right and top becomes bottom. So a notch that starts on the left edge ends up on the right edge after the rotation. It wouldn’t appear on the top or bottom because those edges swap positions as well, and the notch simply shifts to the opposite side. The notch ends up on the right side.

Rotating a shape 180 degrees is a half-turn, which moves every point to the opposite side: left becomes right and top becomes bottom. So a notch that starts on the left edge ends up on the right edge after the rotation. It wouldn’t appear on the top or bottom because those edges swap positions as well, and the notch simply shifts to the opposite side. The notch ends up on the right side.