2. 24°
87°
69°
69°
31°

3. Where is the Maths?

4. Always an equal distance apart!
Parallel Lines
Parallel Lines
Always an equal distance apart!
Will never meet

5. Ext: Prove the angles in a triangle add to 1800
Find Equal Angles!
Draw a ‘cartoon strip’ of four diagrams to show the same thing
Ext: Prove the angles in a triangle add to 1800

6. C A B A C
Draw a ‘cartoon strip’ of four diagrams to show the same thing

7. Whiteboards b a b a d c d c Alternate angles are equal
Angle a = c and b = d
They make a Z shape
Corresponding angles are equal
Angle a = c and b = d
They make an F shape
Whiteboards b a
Allied angles add up to 180°
Angle a + b = 180°
They make a C shape

8. Whiteboards

9. 82°
98°

10. 65°
115°

11. 64°
64°

12. 71°
71°

13. 42°
42°

14. 53°
53°

15. 77°
103°

16. 33°
33°

17. 44°
136°

18. 60°
120°
Last one

19. Alternate angles are equal Angle a = c and b = d They make a Z shape
Corresponding angles are equal
Angle a = c and b = d
They make an F shape b a
Allied angles add up to 180°
Angle a + b = 180°
They make a C shape