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These are the Transum resources related to the statement: "Pupils should be taught to apply angle facts, triangle congruence, similarity and properties of quadrilaterals to derive results about angles and sides, including Pythagorasâ€™ Theorem, and use known results to obtain simple proofs".

Here are some specific activities, investigations or visual aids we have picked out. Click anywhere in the grey area to access the resource.

- Angles in a Triangle Video A reminder of how to use the fact that the angles in a triangle sum to 180 degrees to find the size of unmarked angles in triangular diagrams.
- Angles in a Triangle A self marking exercise involving calculating the unknown angle in a triangle.
- Pythagoras Basics A drill and practice self marking exercise on the basics of Pythagoras' theorem.
- Make Them Right Arrange the measurements next to the sides of the triangles so that each diagram is correct according to Pythagoras' Theorem.
- Congruent Triangles Video Learn the conditions for two triangles to be congruent and then use this information to solve problems.
- Congruent Triangles Test your understanding of the criteria for congruence of triangles with this self-marking quiz.
- Congruent Parts Use the colours to dissect the outlines into congruent parts.
- Similar Parts Use the colours to dissect the outlines into similar parts.

Here are some exam-style questions on this statement:

- "
*\(ABC\) is a right-angled triangle.*" ... more - "
*The diagram, not drawn to scale, show a polygon with one line of symmetry, AE.*" ... more - "
*A point P is marked on side BC of parallelogram ABCD such that AB = BP.*" ... more - "
*The diagram shows a quadrilateral ABCD in which angle DAB equals angle CDA and AB = CD.*" ... more

Click on a topic below for suggested lesson Starters, resources and activities from Transum.

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