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Volume of Figures
Formulas for volume of figures, including cone, sphere, and others.
Space Figure | Volume |
---|---|
General formula for prisms and cylinders | V=Bh |
Rectangular prism | V=lwh (note: all sides must be at right angles) |
Triangular prism (t=height for this only) | V=(1/2*bh)t |
Other prism (p=perimeter of base, a=apothem) | V=1/2*aph |
Cylinder | V=πr²h |
Oblique prism/cylinder | same as right prism/cylinder (but "base" must be perpendicular to the line used for "height") |
Cone | V=1/3*πr²h |
General formula for pyramids | V=1/3*Bh |
Polygonal pyramids (when apothem is given) | V=1/6*aph |
Sphere | V=4/3*πr³ |
Square pyramid | V=1/3*lwh |
Triangular pyramid (t=height) | V=1/3*bht |
Hourglass shape | V=1/3*πr² |