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Identify Congruent Triangles

In this worksheet, students will identify congruent triangles and give reasons for their congruence.

'Identify Congruent Triangles ' worksheet

Key stage:  KS 3

Curriculum topic:   Geometry and Measures

Curriculum subtopic:   Apply Facts About Angles and Sides

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

Triangles which are exactly the same shape and size are congruent.

Note: this also applies to shapes other than triangles.

 

Triangles are congruent for the following reasons:

 

Three matching sides (SSS)

 

 

 

Two matching sides and the angle between them (SAS)

 

 

 

Two matching angles and a corresponding side (AAS)

 

 

 

In a right-angled triangle, the hypotenuse and one matching side (RHS)

 

 

 

Now it's over to you. You will identify congruent triangles and give reasons as to why they are in fact, congruent. 

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