What is the area of a circle whose diameter is 14 cm? (Use $\pi =\frac{22}{7}$)

Step-by-step solution

1. Diameter $d=14$ cm is given. (Given)
2. Find radius $r=d/2=7$ cm.
3. Use area formula for circle: $A=\pi r^2$ with $\pi =\frac{22}{7}$.
4. Compute $A=(\frac{22}{7})\times 7^2=(\frac{22}{7})\times 49=22\times 7=154$ cm${}^2$.
5. Result: area is $154$ cm${}^2$.

Concept tested: Area of circle

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