Question

) If base radius of a cylinder is doubled then the volume of new cylinder =
times the volume of given cylinder.​

Answer 1

Answer:

V = (pi)r2h is the formula for the volume of a cylinder. The formula becomes V = (pi)(2r)2h if the radius is doubled and the height remains the same. V = 4(pi)r2h after simplifying. The volume increases 4 times since the resulting equation is 4 times the original equation.

Answer 2

Answer:

Concept: using the formulae of volume of cylinder.

Given: Base of radius is doubled then the volume of a new cylinder.

To find: the times that the volume of cylinder becomes if the radius is doubled.

Step-by-step explanation:

as we know that the volume of cylinder =$\pi r^{2} h$

and if the radius is doubled , then if we put it in the formulae,

we will get $volume=\pi (2r)^{2}h$

so, volume =$4\pi rh$

∴  the volume is increased by four times as the equals is increased by 4 times.

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