GCSE Maths (AQA)
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Geometry and Measures
Properties and Constructions
Angles on a Line
1:32
Basic Angle Rules
Spec
G3
- There are 180 degrees on a straight line
- To calculate a missing angle on a straight line, add together the given angles and subtract the sum from 180 degrees
- In the example given, the missing angle is 80 degrees
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