1.

The radius and height of a right circular cone in ratio 4 is to 3 and its volume is 2156cm cubefind the curved surface area of the cone

Answer» LET RATIO be 4X and 3x
VOLUME of cone = πr^2h/3
3.14×16x^2×3x/3 = 2156
50.24x^3 = 2156
X^3 = 2156/50.24
x= cube root 42.914
x = 3.50


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