I am trying to find the volume of a cylinder but i dont know the formula ?

Question

i know the formula for radius but what would it be for diameter?

Answer 1

((d^2)*pi) *h/4

Answer 2

The general formula is the (area of the base) x (height):

You know that the base of a cylinder is a circle and hopefully you already know that formula:

Area circle = pi r²

So the volume of a cylinder is simply:

V = pi r² h

Now using the fact that the radius is half of the diameter, you can simply substitute (d/2) in place of r:

V = pi (d/2)² h

This can be further simplified to:

V = ( pi d² h ) / 4

Answer 3

V = π r ² h

or

V = π (d/2)² h = π d ² h / 4

Answer 4

Pi (d/2)^2 h

Answer 5

The volume of a cylinder is PI r^2 h

where PI=3.14, h=height of the cylinder and r is the radius.

If you know the diameter, divide the diameter by 2 to get the radius.

Answer 6

Volume of a cylinder is just the area of the base times the height. The area of the base is a circle so it is pi*R^2 so:

Volume = pi*(R^2)*H

H = height of cylinder

R = radius of cylinder

D = diameter = 2R

R = D/2

Volume = pi*[(D/2)^2]*H

Volume = (pi/4)*(D^2)*H