alleryThe arc length of a sector with radius 21 cm and angle 60 degrees is
A22 cm
B11 cm
C44 cm
D33 cm
Answer & Solution
Correct answer: A. 22 cm
1. Arc = (60/360) × 2 × (22/7) × 21 = (1/6) × 132.
2. = 22 cm.
3. Hence 22 cm.
_Source: syllabus Mathematics, Ch 11 "Areas Related to Circles", §11.2_
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