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Parallel lines for SQA National 5 Maths

Parallel lines

This page covers the following topics:

1. Opposite angles with parallel lines
2. Corresponding angles
3. Alternate angles

When a line crosses over a pair of parallel lines, three different pairs of angles are created. One of these pairs of angles are called opposite angles.

Opposite angles with parallel lines

When a line crosses over a pair of parallel lines, three different pairs of angles are created. One of these pairs of angles are called corresponding angles.

Corresponding angles

When a line crosses over a pair of parallel lines, three different pairs of angles are created. One of these pairs of angles are called alternate angles.

Alternate angles

1

What is the size of angle z?

100ยฐ

What is the size of angle z?

2

Find the value of x.

40

Find the value of x.

3

What is the size of angle y?

97ยฐ

What is the size of angle y?

4

A line is drawn across a pair of parallel lines. Angles A and B are equal and the lines creating the two angles make an F shape. Are angles A and B corresponding angles?

Yes

A line is drawn across a pair of parallel lines. Angles A and B are equal and the lines creating the two angles make an F shape. Are angles A and B corresponding angles?

5

Which two angles are alternate angles?

y and z

Which two angles are alternate angles?

End of page

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