Work out the area of a circle by using pi (3.1415) and the radius (half the width or diameter of the circle) - so that Area - Pi x radius x radius.
We then work out perimeter of circles using pi and radius - so that circumference = 2 x Pi x radius.
Finaly we look at the volume of cylinders - which is the area of the circle x the height (or Pi x Radius x Radius x height).
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Find more lesson plans like this:Applying Scale Factors to Perimeter, Area, and Volume of Similar Figures
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