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A circular park of radius 12 cm has a road of 4 cm width all around it's outside. Find the area of the road |
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Answer» R = r+4 = 12+4 = 16 cm area of road = area of big CIRCLE - area of small circle = πR^2-πr^2 = π{ 16^2-12^2) = 22/7 ( 256-144) = 22/7× 112 = 22×16 = 352 cm ^2 ans hope it'll help you...... |
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