Find the area of shaded portion. if radii of inner and outer circles are 21 cm and 28 cm
respectively
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Answer:
1078 cm²
Step-by-step explanation:
Radius of inner circle = 21 cm
Area of inner circle = 22/7 × (21)² = 1386 cm²
Radius of outer circle = 28 cm
Area of outer circle = 22/7 × (28)² = 2464 cm²
Area of shaded region = (2464 - 1386) cm² = 1078 cm²
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