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. How many lines of symmetry has a Square got? 2 1 3 4

8. 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

9. What shape is this?

10. A Rectangle

11. How many lines of symmetry has a Rectangle got? 1 2

12. 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

13. What shape is this?

14. A Parallelogram

15. How many lines of symmetry has a Parallelogram got? None!

16. 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

17. What shape is this?

18. A Rhombus

19. How many lines of symmetry has a Rhombus got? 1 2

20. 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

21. What shape is this?

22. A Trapezium

23. How many lines of symmetry has a Trapezium got? None!

24. 1 Because these angles are equal. How many lines of symmetry has thisTrapezium got?

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

26. What shape is this?

27. A Kite

28. How many lines of symmetry has a Kite got? 1

29. Properties of a Kite • Has 2 pairs of equal sides • Has 1 pair of equal angles • Equal sides are adjacent • Has 1 line of symmetry • Is an irregular shape

30. Quadrilaterals Shapes with 4 sides!

31. Triangles Shapes with 3 sides!

32. What type of triangle is this?

33. An Equilateral Triangle

34. How many lines of symmetry has an Equilateral Triangle got? 1 2 3

35. 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

36. What type of triangle is this?

37. An Isosceles Triangle

38. How many lines of symmetry has an Isosceles Triangle got? 1

39. Properties of an Isosceles Triangle • Has 2 equal sides • Has 2 equal angles • Has 1 line of symmetry • Is an irregular shape

40. What type of triangle is this?

41. A Scalene Triangle

42. How many lines of symmetry has a Scalene Triangle got? None!

43. Properties of an Scalene Triangle • Has NO equal sides • Has NO equal angles • Has NO lines of symmetry • Is an irregular shape

44. What type of triangle is this?

45. A Right Angled Triangle

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

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

48. Triangles Shapes with 3 sides!

49. Key Words • Regular Shape • Parallel • Perpendicular • Vertex • Diagonal • Bisect

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