May 21, 2014
13-2 Volumes of Pyramids & Cones
Volume:
* Refers to how much space that a figure
encloses.
* How much can the object hold.
* Label is cubic units or u3.
Volume of a Pyramid:
V = (1/3)Bh
B = Area of Base
h - height of prism
1. Jay has a solid clock that is in the shape of
a square pyramid. The clock has a base
of 3 inches and a height of 7 inches. Find
the volume of the clock.
7 in
3 in
May 21, 2014
Volume of a Cone:
V = (1/3)Bh
B = Area of Base
h = height of cone
V = (1/3)πr2h
2. Find the volume of each cone to the
nearest tenth.
a.
5 in
b.
25 ft
13 in
70˚
3. Find the volume of the oblique cone to the
nearest tenth.
10.4 in
4.2 in