To be able to find the radius of the cylinder, you need to know not only its volume but also its height. The best we can do is find an expression for the radius in terms of the height of the cylinder
volume of cylinder = Pi x r2 x h
where r is the radius of the cylinder and h is the height of the cylinder
980 = Pi x r2 x h
r = square root(980/(Pi x h))
The volume of a cylinder that is 980 in long and has a radius of 7 inches is: 150,900 cubic inches.
The volume of a circular cylinder varies directly with the height of the cylinder and with the square of the cylinder's radius If the height is halved and the radius is doubled then the volume will be increased.
If the volume of the cylinder is 5, then its volume is 5 and its radius doesn't matter.
The radius of this cylinder is 7.0525.
Pi * Radius * Radius * Height.
A cylinder with a radius of 4cm and a height of 2cm has a volume of 100.53cm3
The volume of a cylinder that has a radius of 3cm and a height of 7cm is 197.92cm3
Doubling the radius quadruples the volume.
volume=pi*radius squared*height/3, where radius is the radius of the cylinder (and will be the radius of the base of the cone),and height is the lenth of the cylinder.
Volume of a cylinder = pi*radius squared*height
The height of a cylinder with a radius of 7 and a volume of 150 is: 0.9744 units.
The volume of a cylinder with a height of 1 and a radius of 2.45 is: 18.86 units3