A cylinder is a 3D shape with the following:
- two identical, circular faces at each end
- one curved side
- no edges or vertices
How many edges and vertices does a 3D cylinder have?
A cylinder has three faces – two circular and a rectangular.
While it may seem curved, if you flatten a cylinder’s middle section, you would be left with a rectangle.
Calculating the volume of a cylinder
When calculating the volume of a 3D shape, we generally use the equation length x height = volume.
To find the volume of a cylinder, you must start by finding the radius of one of the circles at either end of the shape. Both circles will be the same size, so you only must do this once.
If you already know the radius, that’s excellent! If you don’t, divide the circle’s diameter by two.
If you don’t know the diameter, measure the widest part of the circle with a ruler and divide it by two.
Area
Next, calculate the area of the circular base.
To do this, use the formula A =
