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Q:

# What is the formula for cubic feet?

A:

The cubic feet formula depends on the shape of the object for which one is calculating volume, but for a cube, v=a^3, where a is the length of one side in feet. For cylinders and prisms, the formula is the area of the base multiplied by the height.

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Cones and pyramids also use the same formulas for determining their volumes. For both of these shapes, v=(1/3) b*h. Calculate the area of the base of a cone as a circle with a=pi*(r^2) and the base of a pyramid using the appropriate area formula for the shape.

Use caution when converting from cubic feet to cubic inches or cubic yards. One cubic foot equals 12 x 12 x 12 cubic inches, or 1728 cubic inches. A cubic foot is 1/27 of a cubic yard.

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## Related Questions

• A:

Density is the mass of an object divided by the volume of space the object takes up. This expression gives the numerical amount of mass per unit volume of the object's material.

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• A:

To calculate area, first determine the shape of the object. Next, apply the correct formula is needed, and substitute the values into the appropriate places. Finally, the equation should be solved to find the number that represents the area.

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The equation for the volume of a right circular cylinder is V = πr^2h. In this equation, V is the volume, r is the radius of the cylinder's base, and h is the height of the cylinder. The radius is squared, and multiplied by both the height and pi.