Find the volume of a cone if total surface area is 1728 sqcm r=28cm
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Total surface area= 1728
=> 22/7*28(l+28) = 1728
=> 44*(l+28) = 1728
=> l+28 =1728/44
=> l +28= 39.27
=> l=11.2
volume of cone = 1/3πr^2h
=> 1/3*22/7*28*28*11.2
= 6899.2/3
= 2299.73
=> 22/7*28(l+28) = 1728
=> 44*(l+28) = 1728
=> l+28 =1728/44
=> l +28= 39.27
=> l=11.2
volume of cone = 1/3πr^2h
=> 1/3*22/7*28*28*11.2
= 6899.2/3
= 2299.73
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