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Calculate Angles

In this worksheet, students will be asked to calculate the missing angles on a straight line, in a quadrilateral, around a point and on an intersecting line.

'Calculate Angles' worksheet

Key stage:  KS 2

Year:  Year 6 Maths worksheets

Curriculum topic:   Geometry: Properties of Shapes

Curriculum subtopic:   Recognise/Find Angles

Popular topics:   Angles worksheets, Geometry worksheets

Difficulty level:  

Worksheet Overview

In this activity, you will need to find missing angles.


Missing angles on a straight line

Angles on a straight line add up to 180°.

To calculate a missing angle on a straight line, take away the known angle from 180°.


angles on a straight line


Missing angles in a full turn

Angles in a full turn add up to 360°.

To calculate a missing angle in a full turn, take away the known angle from 360°.


angles on a full turn


Missing angles on intersecting lines

All four angles will add up to 360°.

Opposite angles on a cross are equal.


intersecting lines


Missing angles in quadrilaterals

A quadrilateral is any shape with four sides.

For example; square, rhombus, trapezium, parallelogram.

The angles in a quadrilateral add up to to 360°.


a rhombus


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