Wednesday, February 27, 2013

Volume of a Prism


Volume of a Prism is a measurement of the occupied units of a Prism. The volume of a Prism is represented by cubic units like cubic centimeter, cubic millimeter and so on. It is also defined as the number of units used to fill a Prism.Volume in simple words is the space inside a prism.It is given by the product of Area and height.Volume of all prisms are not the same.Prisms are different in shape depents upon the base of the prism.

volume of a prism

Volume of a Prism Formula

Volume of a solid object is the measure of the space occupied by it. Volume of a prism in general is the area of the base times the height between the two bases. The formula for volume of a prism is as follows.

Volume of prism V = B * h

Where, B is the area of base

h is the height of the prism.

For a triangular prism, B = base of triangle * height of the triangle

For a cube, B = side * side

For cuboid, B = length of rectangle * width of rectangle

Examples

Given below are some of the examples to find the volume of a prism.

Example 1: Find the volume of a triangular prism with dimensions 12m, 16m and 20 m as shown in figure

Volume of a Prism Formula

Solution:

Volume of triangular prism = B * h

B = base area =  * 12 * 16 = 96

Volume = 96 * 20   = 1920 cubic meter

Between, if you have problem on these topics adding rational expressions with different denominators, please browse expert math related websites for more help on cbse notes for class 10.

Example 2: A metallic sheet is of the rectangular shape with dimensions 48c m x 36 cm. From each one of its corners, a square of 8 cm is cutoff. An open box is made of the remaining sheet. Find the volume of the box.

Solution: To make an open box, a square of side 8cm is cut off from each of the four corners and the flaps are folded up.

find the volume of a prism

The dimensions of the box are

Length = 48 -8-8 = 32 cm

Width = 36 -8 -8 = 20 cm

Height = 8 cm

Volume of box = B * h

B = area of rectangular base = length * width = 32 * 20

V = 32 * 20 * 8 = 5120 cubic cm

No comments:

Post a Comment