A circular park is surrounded by a road 21m wide . If the radius of park is 105m, find the area of road
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Find the area of the park:
Area = πr²
= π(105)²
= 11025π m²
Find the radius of the park and road:
Radius = 21 + 105
= 126 m
Find the area of the park and road:
Area = πr²
= π(126)²
= 115876π m²
Find the area of the road:
Area = 115876π - 11025π
= 4851π
= 15246 m²
Answer: Area of the road = 15246 m²
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