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Dimensional measures for SQA National 5 Maths

Dimensional measures

This page covers the following topics:

1. Length
2. Area
3. Volume

Length is a measure of the distance between two points. It is given in mm, cm and m.

Length

Area is a measure of the amount of space inside a 2D-shape. It is calculated by multiplying the length and width of a shape. Area is given in units mmยฒ, cmยฒ and mยฒ.

Area

Volume is a measure of the amount of space inside a 3D-shape. It is calculated by multiplying the length, width and height of a shape. Area is given in units mmยณ, cmยณ and mยณ.

Volume

1

Find the total area of the given shape.

Area = 4(4) + 10(2) = 36 cmยฒ.

Find the total area of the given shape.

2

Find the total area of the given shape.

Area = 3(3) + 3(3) + 2(12) = 42 cmยฒ.

Find the total area of the given shape.

3

What is the area of a rectangle of side 4 cm and 8 cm?

Area = 4(8) = 32 cmยฒ.

What is the area of a rectangle of side 4 cm and 8 cm?

4

Calculate the area of the given shape.

By separating the shape into two rectangles, area = 4(7) + 3(4) = 40 cmยฒ.

Calculate the area of the given shape.

5

Five identical paper squares of side 3 cm are lined up next to each other. Calculate the total length.

Length = 5 + 5 + 5 + 5 + 5 = 25 cm.

Five identical paper squares of side 3 cm are lined up next to each other. Calculate the total length.

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