the radius of a cicular field is 20m . Inside it run a path 5 m wide all around. find the area of the path (Take π=22/7
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here are the two circles of radii 20m, 15m (=20-5).
Area of the path = area of outer circle - area of inner circle
= 22/7 * ( 20^2 - 15^2)
= 22/7 * (400 - 225 )
= 22/7 * (175)
= 550 sq. m
Area of the path = area of outer circle - area of inner circle
= 22/7 * ( 20^2 - 15^2)
= 22/7 * (400 - 225 )
= 22/7 * (175)
= 550 sq. m
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