©G Dear 2009 – Not to be sold/Free to use General Mathematics Preliminary Applications of Area and Volume Volume of Pyramids Stage 6 - Year 11 Press Ctrl-A ©G Dear 2009 – Not to be sold/Free to use

The volume of a pyramid is Volume – Pyramids (1/2) The volume of a pyramid is the volume of the prism. 1 3 V = 1/3 Ah = 1/3 x 25 x 6 6cm = 50 cm3 5cm A = s2 = 52 = 25 cm2

the volume of the cylinder. Volume – Cones (2/2) The volume of a cone is the volume of the cylinder. 1 3 V = 1/3 Ah 6cm = 1/3 x 78.5 x 6 5cm ≈ 157 cm3 A = π r2 = π x 52 ≈ 78.5 cm2