A circular park of radius 21 cm has a outer side path of 3.5 cm. find the area of the path
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Outer radius = 21 cm = R
Inner radius = 21 - 3.5 = 17.5 cm = r
Area = π (R² - r² ) = 423.115 cm²
Inner radius = 21 - 3.5 = 17.5 cm = r
Area = π (R² - r² ) = 423.115 cm²
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