Mensuration · Question 28 · Hard
What is the area of a sector of a circle of radius 21 cm whose central angle is 60°? (Use π = 22/7)
- 231 cm²
- 22 cm²
- 462 cm²
- 1,386 cm²
Answer and explanation
Answer: A. 231 cm²
Explanation: Sector area = (60/360) × πr² = (1/6) × 22/7 × 441 = 231 cm².
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