Volume of Pyramids and Cones

Volume of a sphere = 4/3 πr³, where π = 22/7 or 3.14, r = radius of the sphere

Volume of a hemi-sphere = 1/2 x volume of sphere = 1/2 x 4/3 πr³

Volume of a cone = 1/3 Bh, where B = area of the base, h = height of the cone

Area of the base = πr², where π = 22/7 or 3.14, r = radius

If the a cone and a cylinder have the same base area and same height, volume of the cone = 1/3 x volume of the cylinder

The volume V of a rectangular pyramid is one third the area of its base B times its height h, where base is a rectangle

Volume (V) = 1/3 x Bh

Area of the rectangular base = length x width

If the a prism and a pyramid have the same base area and same height, volume of the pyramid = 1/3 x volume of the prism