1. Volume
Any solid figure can be filled completely with congruent cubes and parts of cubes. The volume of a solid is the number of cubes it can hold. Each cube represents a unit of measure called a cubic unit.

2. Prisms: VOLUME OF A PRISM
The volume V of a prism is the area of its base B times its height h.
V = Bh
If you have a Rectangular Prism; B= l x w
If you have a Triangular Prism; B= ½ b x h

3. Visual Aid: 4 cm · 3 cm · 1cm = 12 cm3
length · width · height = volume
area of
base
· height = volume

4. Examples: 4.1 ft 4.1 ft 12 ft V = Bh Use the formula.
The bases are rectangles.
The area of each rectangular base is 12 · 4.1 = 49.2
V = 49.2 · 4.1
Substitute for B and h.
V =
Multiply.
The volume to the nearest tenth is ft3.

5. On your own…
1.)
861.8 cm3
2.) triangular prism: base area = 24 ft2, height = 13 ft
312 ft3