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Review
• The volume of a cylinder is given by the formula , where r is the radius of a
circular base and h is the height.
• The volume of a cone is given by the formula , where r is the radius of the
circular base and h is the height.
• The volume of a sphere is given by the formula , where r is the radius of the
sphere.
The Effects on Measures of Changes in Dimensions
Lesson Objective
In this section, we’ll review measures of two- and three-dimensional figures by determining how
changes in one or more of a figure’s dimensions will influence those measures.
Previously Covered
We have reviewed various formulas used for measuring geometric figures.
How is the area of a rectangle affected if both its length and width are doubled? How is the volume of a
cube affected if the lengths of its sides are halved? In this section we’ll look at a handful of measures so
that you can see how problems like these are solved.
