1. All pupils are confident working with similarity and congruence
Similarity and Congruence Practice
L.O.
All pupils are confident working with similarity and congruence

2. Starter:
Snap!

3. All pupils are confident working with similarity and congruence
Similarity and Congruence Practice
L.O.
All pupils are confident working with similarity and congruence

4. Main 1:
Wipeboards

5. Are these triangles congruent
Are these triangles congruent? If so state one of these reasons SSS, SAS, ASA, RHS

6. Are these triangles congruent
Are these triangles congruent? If so state one of these reasons SSS, SAS, ASA, RHS

7. Are these triangles congruent
Are these triangles congruent? If so state one of these reasons SSS, SAS, ASA, RHS

8. Are these triangles congruent
Are these triangles congruent? If so state one of these reasons SSS, SAS, ASA, RHS

9. Are these triangles congruent
Are these triangles congruent? If so state one of these reasons SSS, SAS, ASA, RHS

10. Are these triangles congruent
Are these triangles congruent? If so state one of these reasons SSS, SAS, ASA, RHS

11. Are these triangles congruent
Are these triangles congruent? If so state one of these reasons SSS, SAS, ASA, RHS

12. Are these triangles congruent
Are these triangles congruent? If so state one of these reasons SSS, SAS, ASA, RHS

13. Are these triangles congruent
Are these triangles congruent? If so state one of these reasons SSS, SAS, ASA, RHS

14. All pupils are confident working with similarity and congruence
Similarity and Congruence Practice
L.O.
All pupils are confident working with similarity and congruence

15. Similar? Congruent? Main 2: A A A A A A A A A A A A A A A A D B C J I
7cm A A
80ᵒ
10cm
60ᵒ A A
12cm
3cm D A B
75ᵒ C
60ᵒ
80ᵒ
3cm
12cm
4cm
9cm J A A A
50ᵒ A
12m
8cm I
30ᵒ G
30ᵒ
3cm E A
4cm
80ᵒ
80ᵒ
8cm
80ᵒ A
50ᵒ F
4cm
80ᵒ 7m H
60ᵒ
60ᵒ A
75ᵒ A
12cm A
50ᵒ A
80ᵒ A K
75ᵒ L
3cm
12cm
9cm
80ᵒ O M N
50ᵒ
45ᵒ
7cm
45ᵒ
10cm
3cm

16. Similar? Congruent? Main 2: A A A A D B A C J I G E F H L K O N M 7cm
80ᵒ
10cm
60ᵒ
12cm
3cm B D
75ᵒ A C
60ᵒ
80ᵒ
3cm
12cm
4cm
9cm J A
50ᵒ
12m
8cm A I
30ᵒ G
30ᵒ
3cm E
4cm
80ᵒ
80ᵒ A
8cm
80ᵒ
50ᵒ F
4cm
80ᵒ 7m H
60ᵒ
60ᵒ
75ᵒ A
12cm
50ᵒ
80ᵒ K L
75ᵒ
3cm
12cm O
9cm N
80ᵒ M
50ᵒ
45ᵒ
7cm
45ᵒ
10cm
3cm

17. All pupils are confident working with similarity and congruence
Similarity and Congruence Practice
L.O.
All pupils are confident working with similarity and congruence

18. Congruence and Similarity
Main 3:
Congruence and Similarity

19. Main 3:
The Back Story
Aptly named Deputy Nick Crimes has just woken from a coma to discover that Earth is in the midst of a zombie apocalypse. The "shufflers" and "nibblers", as the zombies are known, are continually looking for "fresh meat" in the form of human flesh.
Deputy Crimes must find refuge along with fellow survivors from the shufflers and nibblers.
Can you help?

20. Which of the warehouses below can he go in safely?
Main 3:
Situation 1
Deputy Crimes has been informed that any warehouses that are congruent to Shape A are safe.
Which of the warehouses below can he go in safely? A B C D E F G H I J K L M N O
Answers:
C, D, F, I, L, M

21. Which of the buildings below can he go in safely?
Main 3:
Situation 2
Deputy Crimes has been informed that any buildings that are similar to Shape A are safe.
Which of the buildings below can he go in safely? A B C D E F G H I J
Answers:
C, E, H, J

22. Main 3:
Situation 3
Deputy Crimes has been informed that any buildings that are similar to a cuboid of dimensions 3cm by 4cm by 5cm are safe. Which of the buildings below can he go in safely?
Building A 6m 8m
10m
Building B:
Height: 9m
Width: 11m
Length: 15m
Building C:
Height: 12m
Width: 16m
Length: 20m
Building D:
Height: 7.5m
Width: 10m
Length: 12.5m
Building E
4.5m
5.5m
7.5m
Answers:
A, C, D

23. Main 3:
Situation 4
Deputy Crimes knows that the picture of the triangle and the silhouette of the building are similar. He wants to know the missing lengths on both triangles and the scale factor of enlargement.
21m
31.5m
6cm
8cm
9cm
28m
Scale Factor: 3.5

24. All pupils are confident working with similarity and congruence
Similarity and Congruence Practice
L.O.
All pupils are confident working with similarity and congruence