Question:
The circumference of a circle is 44 cm. What is its radius? (Use π = 22/7).
The circumference of a circle is 44 cm. What is its radius? (Use π = 22/7).
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For circle problems, use C = 2\pi r and solve algebraically.
Updated On: Aug 11, 2025
- 6 cm
- 7 cm
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The Correct Option is B
Solution and Explanation
Step-by-step Solution
-
Write the circumference formula.
C = 2πr -
Rearrange to solve for the radius.
r = C / (2π) -
Substitute the given values.
r = 44 / (2 × 22/7) -
Simplify the denominator.
2 × 22/7 = 44/7 -
Divide by a fraction (multiply by its reciprocal).
r = 44 ÷ (44/7) = 44 × (7/44) -
Cancel common factors and compute.
r = 7 cm
Final Answer
7 cm — Correct option.
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