Volume of Prism, Cylinder and Pyramid :)

By: Katerina Palacios 10-1

Volume of Prism:To find the volume of a rectangular prism you have to do like you are going to find the area of a normal rectangle, the difference is that in a rectangular prism you multiply by height instead of just multiplying lxw.

The formula to find the volume is:A= LxWxH

Examples:

5

26

A= l*w*hA=5x2x6A=60

7

53

A=l*w*hA=3*5*7A= 105

4

8

3

A= l*w*hA=3x4x8A= 96

Volume of Cylinder : To find the volume of a cylinder you have to use the π symbol that stands for Pi. Since it is a cylinder that includes a circle then you must use π for the circumference and area of a circle.

The formula for finding the volume of a cylinder is :

Πr squaredh

3

2

A=Πrsquared hA= π3squared2A=56.52

4

5

A= π5squared4A= 314

7

9

A=πrsquaredhA= π 9squared7A=63 π

Volume of a PyramidTo find the volume of a pyramid you have to multiply the base times the height and then by 1/3 .

The formula to find the formula is:

A=1/3 bh

Examples:

6

7

V=1/3(B)(h)V=1/3(7)(6)V=14

9

5

V=1/3(b)(h)V=1/3(5)(9)V=15

8

3

V=1/3(b)(h)V=1/3(3)(8)V=8