WOLFRAM|DEMONSTRATIONS PROJECT

Regular Prism Volume and Surface Area

​
sides
3
length
1
height
1
​
​
base area
0.433
× height
1
= volume
0.433
​
​
total surface area
3.866
A regular prism has two regular polygons set apart by some height
h
with matching edges joined to make rectangles. When the polygon has area
A
, the volume
V
of the prism is
V=A×h
. With
n
sides of length
l
, the polygons each have area
A=
2
l
n
4
cot
π
n
.