Question

what is the volume of a cylinder with radius 2r and height 3 h cm​

Answer 1

Answer:

Given :    a cylinder with radius 2r cm and height 3h cm

To Find :  Volume of a cylinder

Solution:

Volume of cylinder = π (radius )² * height

radius = 2r  cm

Height = 3h   cm

Volume of cylinder = π (2r )² * (3h)

=  π 4r² * (3h)

= 12πr²h   cm³

Volume of a cylinder = 12πr²h   cm³

Step-by-step explanation:

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Answer 2

Answer:

Given:

The radius of the cylinder = 2r

Height of the cylinder = 3h

To find:

The volume of the cylinder.

Solution:

If the radius of the cylinder is r and height is h then the volume of the cylinder = pie r^2h

Therefore the volume of the cylinder with radius 2r cm and height 3h cm will be:

pie(2r)^2 (3h)

=12pier^2hcm^3

Therefore the volume of the cylinder is

12pie^2hcm^3

Step-by-step explanation: