Find the area of a circle whose radius is 12 cm.

Step-by-step solution

1. Use the formula $A=\pi r^2$.
2. Substitute $r=12$: $A=\pi \times 12^2=\pi \times 144$.
3. Thus $A=144\pi {\text{ cm}}^2$.

Concept tested: Area of circle

Published 10 October 2026 · How this solution was prepared and checked