The ratio of radius and height of a cylinder is 2:3 .if its volume is 12,936cm
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Step-by-step explanation:
Let the radius be 2x, height be 3x.
Volume=πr²h
π*(2x)²*3x=12,936 cm³
22/7*4x²*3x=12,936
22/7*12x³=12,936
x³=(12,936×7)/22×12
x³=343
x=7 cm
Radius=2x=2×7=14 cm
Height=3x=3×7=21 cm
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