A circular garden has a radius of 20 metre. A sprinkler is installed at the centre of the circular field if the sprinkler can cover a circular area of radius 14 m. find area of the field that the sprinkler cannot cover. shayeri
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Answered by
5
Step-by-step explanation:
Area of circular garden = πr^2
22/7×20×20
22/7×200
4400/7
628.57 metre^2
Area the sprinkler can cover = πr^2
22/7×14×14
22×2×14
44×14
616 metre^2
Area sprinkler can't cover = 628.57-616
8.57 metre^2
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Answered by
2
Area of the field that the sprinkler cannot cover =Area of Garden -Area cover by sprinkler
=πR^2- πr^2
=π(R^2-r^2)
=22/7(20^2-14^2)
=22/7(400-196)
=22/7*204
=614.142m^2
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