Everything Maths Grade 10

Rectangular prism

l

h

b

Volume =area of baseheight

=area of rectangleheight

=lbh

Triangular prism

H

b

h

Volume =area of baseheight

=area of triangleheight

=

( 1

2 bh

)

H

Cylinder

r

h

Volume =area of baseheight

=area of circleheight

=r^2 h

Worked example 5: Finding the volume of a cube

QUESTION

Find the volume of the following cube:

3 cm

j j

j j

j j

j j

j

SOLUTION

Step 1: Find the area of the base

area of square=s^2

= 3^2

=9 cm^2

428 13.2. Right prisms and cylinders