radius and height of a right circular cone are in the ratio 4 is to 3 and its volume is 2146 cm cube find the curved surface area of the cone
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let ratio of radius and hight be 4x and 3x
volume of cone = πr^2h/3
πr^2h = 2146
22/7×4x^2×3x = 2146
264x^3/7 = 2146
x^3 = 2146×7/264
x = 7.5432 cm
volume of cone = πr^2h/3
πr^2h = 2146
22/7×4x^2×3x = 2146
264x^3/7 = 2146
x^3 = 2146×7/264
x = 7.5432 cm
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