find the area of the shaded region if radius of inner circle is 21m and radius of outer circle is 28m
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Step-by-step explanation:
Area = Area of outer circle - Area of inner circle = π*(28)²-π*(21)²
= π*(28²-21²)
= 22/7 * 49 * 7
= 22*49
= 1078 m²
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