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Corresponding Angles Flashcards
GCSE Mathematics (Edexcel) 1MA1
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Corresponding angles
Angles that are in the same relative position at each intersection where a straight line crosses two others.
Corresponding angles rule
If two parallel lines are crossed by a transversal, the corresponding angles are equal.
Transversal
A line that crosses two or more other lines.
Parallel lines and corresponding angles
Corresponding angles are equal when the lines are parallel.
Shape formed by corresponding angles
Corresponding angles form an 'F' shape when the lines are parallel.
Example of corresponding angles
If one corresponding angle is 50°, the other corresponding angle is also 50°.
Non-parallel lines and corresponding angles
If the lines are not parallel, corresponding angles are not necessarily equal.
Identifying corresponding angles
Look for angles in matching corners of the 'F' shape formed by the transversal and parallel lines.
Real-life example of corresponding angles
Corresponding angles can be seen in railway tracks crossed by a bridge or road.
Reason for corresponding angles being equal
This is due to the parallel nature of the lines and the consistent spacing between them.

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