Question

the radius and height of a cylinder are in the ratio 7:2 if the volume of the cylinder is 8316cm^3 find the radius of the cylinder

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Hi..

let radius be 7x and height be 2x

so, volume = 8316 m^3
volume of cylinder

▪$\pi {r}^{2} h = 8316$

▪$\pi \times {49x}^{2} \times 2x = 8316$

▪$98 {x}^{3} = 8316 \times \frac{7}{22}$

▪${x}^{3} = \frac{8316}{98} \times \frac{7}{22}$

▪$x = \sqrt[3]{27}$

▪$x = 3$

So, radius of cylinder = 3×7 => 21cm

#THANKS