1. ©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
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©G Dear 2009 – Not to be sold/Free to use

2. 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

3. 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