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Calculating Angles at a Point and on a Straight Line

In this worksheet, students calculate angles at a point and on a straight line.

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'Calculating Angles at a Point and on a Straight Line' worksheet

Key stage:  KS 2

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   2D Shapes: Circles, Angles and Bearings

Difficulty level:  

Worksheet Overview

Angles at a point add to 360°.

Angles on a straight line add to 180°.


If we know one of the angles at a point, or on a straight line, we can calculate the other one.




At a point:

a + 240° = 360°
a = 120°
On a straight line:

b + 160° = 180°
b = 20°
At a point:

a + 45° = 360°
a = 315°

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