Vocabulary

Volume – the measure of space that a three-dimensional figure occupies.

Lateral face – any face of a pyramid that is not the base. The lateral faces of a pyramid meet at a common vertex.

Height – perpendicular distance from the base to a vertex.

Concepts

Identifying the height or base dimensions of a pyramid.

Rules

1. Determine what each measurement on the diagram refers to.
2. The height is one value that is always measured from the vertex perpendicular to the base.
3. The base dimensions give define lengths of sides of the base.

Example

What is the height of the pyramid?

Solution

The height of the pyramid is the distance from the vertex perpendicular to the base. The height of this pyramid is 6 cm.

Pre-requisite Skills

Area of a Triangle (6.11.3)

Volume of Prisms (7.9.3)