A circular park of radius 15 m has a path of 10m width around its outer side and find the area of the road
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area of circle = pie R²
= pie r² - pie R²
= pie ( r² - R²)
= 22/7*{ (25)² - (15)² }
= 22/7 * {625-225}
= 22/7 * 400
= 1257.14 m²
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