1. Course 2
Volume of Pyramids

2. Volume of Pyramids Example 1
Course 2
Volume of Pyramids
Example 1
Find the volume of the pyramid to the nearest tenth. Estimate to check whether the answer is reasonable. 1 3
V = Bh
Use the formula.
4 ft
Find the area of the
rectangular base.
B = 5 · 7 = 35 1 3
V =
· 35 · 4
Substitute for B and h.
7 ft
5 ft
V ≈ 46.7 ft3
Multiply. 1 3
Estimate
V =
· 30 · 5
Round the measurements.
V = 50 ft3
The answer is reasonable.

3. Volume of Pyramids Example 2
Course 2
Volume of Pyramids
Example 2
Find the volume of the pyramid to the nearest tenth. Estimate to check whether the answer is reasonable. 1 3
V = Bh
4 ft
Use the formula.
Find the area of the
rectangular base.
B = 8 · 7 = 56 1 3
V =
· 56 · 4
Substitute for B and h.
7 ft
8 ft
V ≈ 74.7 ft3
Multiply. 1 3
Estimate
V =
· 60 · 4
Round the measurements.
V = 80 ft3
The answer is reasonable.

4. Course 2
Volume of Pyramids
Volume of a Triangular Pyramid

5. Volume of Pyramids Example 3
Course 2
Volume of Pyramids
Example 3
Find the volume of the following triangular pyramid, rounding your answer to two decimal places

6. Volume of Pyramids and Cones
Course 2
Volume of Pyramids and Cones
Lesson Quiz
Find the volume of each pyramid or cone to the nearest tenth. Use 3.14 for . Estimate to check whether the answer is reasonable. 1.
80 ft3 2.
252 ft3