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Geometrical properties: similarity and Pythagoras' theorem

Year 9 • Maths
We've put the lessons in order helping you build on what you've learned before so it’s best to start with the first lesson of a unit.

Choose a lesson (18)

1
Checking understanding of similarity
2
Checking understanding of congruence
3
Similarity in shapes
4
Congruence in shapes
5
Congruent, similar or neither
6
Rotational symmetry
7
Congruent triangles (SSS)
8
Congruent triangles (SAS)
9
Congruent triangles (ASA and AAS)
10
Congruent triangles (RHS)
11
Applying the criteria for congruence
12
Demonstrating Pythagoras' theorem
13
Further demonstrating of Pythagoras' theorem
14
Length of the hypotenuse
15
Length of a shorter side
16
Determining which side
17
Pythagoras' theorem in context
18
Problem solving with similarity and Pythagoras' theorem