Question:
The area of a circle is 154 cm\(^2\). Find its circumference. (Take \(\pi=\frac{22}{7}\).)
The area of a circle is 154 cm\(^2\). Find its circumference. (Take \(\pi=\frac{22}{7}\).)
Show Hint
Since the options give circumference values, try converting each option back into a radius and check which one reproduces the given area of 154 cm squared.
Updated On: Jul 8, 2026
- 36 cm
- 22 cm
- 48 cm
- 44 cm
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The Correct Option is D
Solution and Explanation
Area \(=\pi r^2=154\Rightarrow r^2=154\times\frac{7}{22}=49\Rightarrow r=7\) cm. Circumference \(=2\pi r=2\times\frac{22}{7}\times 7=44\) cm. Correct option: 44 cm.
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