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Geometry: Angles and Parallel Lines

In this worksheet, students work out the values of angles in diagrams with parallel lines.

'Geometry: Angles and Parallel Lines' worksheet

Key stage:  KS 2

Year:  Year 5 Maths worksheets

Curriculum topic:   Geometry: Properties of Shapes

Curriculum subtopic:   Know Angles and Degrees

Popular topics:   Angles worksheets, Geometry worksheets

Difficulty level:  

Worksheet Overview

In this worksheet, understand that certain angles are equal to each other when a line is drawn across two parallel lines.

Look at the diagram below to see which of the 8 angles are equal to each other.  All the "a" angles are equal and all the "b" angles are equal.

Parallel angles


Remember also that aº + bº = 180º as they are the angles on a straight line.

Also remember that the angles in a triangle add to 180º.

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