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Summary Volume Notes Yr9

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This document describes the formulas and how to use them to find the volume(s) of 3d objects such as prisms, cylinders, cones and pyramids. It gives a good description of the steps you need to undergo to identify and solve a problem involving volume in 3d objects.

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1. Cones: A cone is a three-dimensional shape that has a circular base and tapers to a
point at the top. The formula for the volume of a cone is V = 1/3πr^2h, where r is the
radius of the circular base and h is the height of the cone.
2. Cylinders: A cylinder is a three-dimensional shape that has two circular bases and a
curved surface that connects the bases. The formula for the volume of a cylinder is V
= πr^2h, where r is the radius of the circular base and h is the height of the cylinder.
3. Prisms: A prism is a three-dimensional shape that has two parallel bases that are the
same shape and size, and a set of rectangular faces that connect the bases. The
formula for the volume of a prism is V = Bh, where B is the area of the base and h is
the height of the prism.
4. Spheres: A sphere is a three-dimensional shape that is perfectly round, with all points
on the surface equidistant from the center. The formula for the volume of a sphere is
V = 4/3πr^3, where r is the radius of the sphere.
5. Pyramids: A pyramid is a three-dimensional shape that has a polygonal base and
triangular faces that meet at a single point at the top of the shape. The formula for the
volume of a pyramid is V = 1/3Bh, where B is the area of the base and h is the height
of the pyramid.

It's important to note that the units used for volume will depend on the units used for the
measurements of the dimensions of the shape. For example, if the dimensions are measured
in centimeters, the volume will be measured in cubic centimeters (cm^3). Similarly, if the
dimensions are measured in meters, the volume will be measured in cubic meters (m^3).

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