This lesson is for GCSE Higher revision but can be used for a high ability KS3 class. This lesson goes through what is meant by ‘congruency’ and the four conditions that are sufficient to prove that two triangles are congruent. There is also an extension on being able to solve GCSE problems on congruency which will extend their learning to a Grade A.
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Clear and straight forward thanks
Great, thank you, very clear examples
Thank you
A well planned and clear explanation of congruent triangles. Thank you for sharing this resource.
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