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Congruent Triangles

Test your understanding of the criteria for congruence of triangles with this self-marking quiz.

Level 1 Level 2 More Geometry

This is level 2; Further questions ordered randomly. The diagrams are not drawn to scale.

For each pair of triangles select the correct description of congruency.

1.Triangles 2

Correct Wrong

2.Triangles 7

Correct Wrong

3.Triangles 1

Correct Wrong

4.Triangles 3

Correct Wrong

5.Triangles 11

Correct Wrong

6.Triangles 8

Correct Wrong

7.Triangles 6

Correct Wrong

8.Triangles 9

Correct Wrong

9.Triangles 12

Correct Wrong

10.Triangles 10

Correct Wrong

11.Triangles 5

Correct Wrong

12.Triangles 4

Correct Wrong

This is Congruent Triangles level 2. You can also try:
Level 1


Try your best to answer the questions above. Choose one of the five possible answers. When you have finished click the "check" button. If you have any questions wrong, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file. You can also claim a 'Transum Trophy' by completing this quiz.

This web site contains hundreds of free mathematical activities for teachers and students. Click here to go to the main page which links to all of the resources available.

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Comment recorded on the 1 February 'Starter of the Day' page by M Chant, Chase Lane School Harwich:

"My year five children look forward to their daily challenge and enjoy the problems as much as I do. A great resource - thanks a million."

Comment recorded on the 16 March 'Starter of the Day' page by Mrs A Milton, Ysgol Ardudwy:

"I have used your starters for 3 years now and would not have a lesson without one! Fantastic way to engage the pupils at the start of a lesson."

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Learning and understanding Mathematics, at every level, requires learner engagement. Mathematics is not a spectator sport. Sometimes traditional teaching fails to actively involve students. One way to address the problem is through the use of interactive activities and this web site provides many of those. Click here for more activities designed for students in upper Secondary/High school.

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Description of Levels



Level 1 - Determining whether two triangles are congruent and finding the reason

Level 2 - Further questions ordered randomly


Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly.