Question:
What is the area of a circle with radius 7 cm? (Use π = 22/7).
What is the area of a circle with radius 7 cm? (Use π = 22/7).
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For circle area, use \pi r^2 and compute carefully.
Updated On: Aug 11, 2025
- 154 cm²
- 165 cm²
- 176 cm²
- 187 cm²
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The Correct Option is A
Solution and Explanation
The area \(A\) of a circle is calculated using the formula:
\(A = \pi r^2\)
where \(r\) is the radius of the circle. Given:
- Radius \(r = 7 \text{ cm}\)
- \(\pi = \frac{22}{7}\)
Substituting these values into the formula, we get:
\(A = \frac{22}{7} \times (7)^2\)
Simplify the equation:
\(A = \frac{22}{7} \times 49\)
\(A = 22 \times 7\)
Calculate the resulting multiplication:
\(A = 154 \text{ cm}^2\)
Thus, the area of the circle is 154 cm².
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