Volume of pyramids and cones (8th grade math)

The formula for the volume of both pyramids and cones is V = (area of the base) × (height) / 3. We calculate the volume of a circular cone, keeping in mind that the diagram gives us the diameter, not the radius, but we need the radius for the area of the circle.

Then in the second example, the task is to find the height of a square pyramid when its volume and the side of the base are known.

See also

Volume of prisms and cylinders — video lesson

Math Mammoth Grade 8 curriculum

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