1. All about Shapes
Ask Boffin!

2. Properties of Shapes Number of sides Number of angles
Number of lines of symmetry
Regular or irregular
Right Angles
Parallel lines

3. Shapes
Triangles
Quadrilaterals
Polygons
Regular Shapes
Key Words

4. Quadrilaterals
Shapes with 4 sides!

5. What shape is this?

6. A Square

7. Properties of a Square Has 4 equal sides Has 4 equal angles
Each angle is a right angle
Has 4 lines of symmetry
Is a regular shape

8. What shape is this?

9. A Rectangle

10. Properties of a Rectangle
Has 2 pairs of equal sides
Has 4 equal angles
Each angle is a right angle
Has 2 lines of symmetry
Is an irregular shape

11. What shape is this?

12. A Parallelogram

13. Properties of a Parallelogram
Has 2 pairs of equal sides
Has 2 pairs of equal angles
Opposite sides are parallel
Has NO lines of symmetry
Is an irregular shape

14. What shape is this?

15. A Rhombus

16. Properties of a Rhombus
Has 4 equal sides
Has 2 pairs of equal angles
Opposite sides are parallel
Has 2 lines of symmetry
Is an irregular shape

17. What shape is this?

18. A Trapezium

19. Properties of a Trapezium
Has unequal sides
One pair of opposite sides are parallel
Usually has NO lines of symmetry
Is an irregular shape

20. Quadrilaterals
Shapes with 4 sides!

21. Triangles
Shapes with 3 sides!

22. What type of triangle is this?

23. An Equilateral Triangle

24. Properties of an Equilateral Triangle
Has 3 equal sides
Has 3 equal angles
Each angle is a 60o angle
Has 3 lines of symmetry
Is a regular shape

25. What type of triangle is this?

26. A Right Angled Triangle

27. A Right Angled Triangle is different
It may be scalene
or it may be isosceles
But it always has a right angle!

28. Properties of a Right Angled Triangle
Has 1 right angle
May be an isosceles triangle
May have 1 line of symmetry
Is an irregular shape
It will be isosceles and have 1 line of symmetry when these 2 sides are equal.

29. Triangles
Shapes with 3 sides!

30. Key Words
Regular Shape
Parallel
Perpendicular
Vertex
Diagonal
Bisect

31. Regular Shape Shapes are regular when
All their sides are the same length
All their angles are the same size

32. Polygons
Shapes with many sides!

33. What shape is this?

34. A Hexagon

35. Properties of a Regular Hexagon
Has 6 equal sides
Has 6 equal angles
Has 6 lines of symmetry

36. What shape is this?

37. A Pentagon

38. Properties of a Regular Pentagon
Has 5 equal sides
Has 5 equal angles
Has 5 lines of symmetry

39. Polygons
Shapes with many sides!

40. Regular shapes All the sides are the same length
All the angles are equal
Have the same number of lines of
symmetry as the number of sides