# Finding the volume of a prism?

A person can find the volume of a prism by 1/2 x length x width x height. This formula works for a triangular prism.

### What is the formula for calculating the volume of an octagonal prism?

Calculating the volume (V) of an octagonal prism involves finding the area (A) of the octagon that is an end (or base), and then simply multiplying it by the length (L) of the prism. The area of an octagon with a side of length s is given by this formula: Aoctagon = 2 (1 + sqrt 2) s2 or about 4.8284 s2 If we take that and multiply it by the length of the prism…

### How do you find the volume of a rectangular prism relates to the volume of a tringular prism if the two have the same lengthwidthand height?

The volume of a rectangular prism is found by; Volume = Length x Width x Height The volume of a triangular prism is found by; Volume = 1/2 x Length x Width x Height Therefore, Length, Width and Height being identical, 1) the volume of a rectangular prism is twice that of a similar triangular prism OR 2) the colume of a triangular prism is half that of a similar rectangular prism.

### Formula for finding the volume of a prism?

A prism in mathematics is a figure that has the same cross-sectional shape no matter where it is cut. That doesn't really explain it well but a pipe is a cylinder with a circular base so it is a prism. A Toblerone, the triangular chocolate, is a triangular prism (almost). A box, a crate, a rectangular sky scraper is a rectangular prism. They all have a volume = area of base x height. rectangular prism…