Volume of a Triangular Prism Formula

A prism that has 3 rectangular faces and 2 parallel triangular bases, then it is a triangular prism. The triangular bases are joined by lateral faces and are parallel to each other. The space occupied by the triangular prism is the volume of the triangular prism.

The picture below illustrate the formula. Let’s solve one example.

triangular prism

\[\large Volume\;of\;triangular\;prism=\frac{1}{2}abh\]

Solved Example

Question. Find out the surface area of a triangular prism with base 4 cm, side 3 cm and height 6 cm

Solution:

Given,
a= 3
b= 4 cm
h= 6 cm

According to the formula,
$Volume\;of\;triangular\;prism=\frac{1}{2}abh$

$=\frac{1}{3}\times3\times4\times6$

$=36 cm^{3}$


Practise This Question

In an atom, an electron is moving with a speed of 600 m/s with an accuracy of 0.005 %. Certainity with which the position of the electron can be located is

(h = 6.6 × 1034 kg m2 s1,mass of electron, em = 9.1 × 1031 kg)