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Geometry: Volumes of Cylinders, cones and Spheres
Finding the Radius of a Cone from Volume
Description
Finding the Radius of a Cone from Volume
Introduction
The volume formula for a cone can be used to find an unknown radius when the volume and height are known. This is useful when determining the dimensions of cone-shaped objects. Since the radius describes the size o...
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Transcript
Ethan's teacher gives him a math problem to find the radius of a cone. The cone has a volume of 308 cubic inches and a height of 6 inches.
To find the radius, he begins by writing the volume formula for a cone, V = ⅓πr²h.
Next, he substitutes the known values into the formula, using 22/7 as a close approximation for pi. He then simpl...
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