Download presentation

1
All about Shapes

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 does a square have?**

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 does a rectangle have?**

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 does a parallelogram have?**

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 does a rhombus have?**

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 Trapezoid

23
**How many lines of symmetry does a trapezoid have?**

None!

24
**How many lines of symmetry does this trapezoid have ?**

1 Because these angles are equal.

25
**Properties of a Trapezoid**

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 diamond

28
**How many lines of symmetry does a diamond have?**

1

29
**Properties of a diamond**

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 does an equilateral triangle have?**

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 does an Isosceles Triangle have?**

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 does a scalene triangle have?**

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 triangle

46
**Properties of a right 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.

47
Triangles Shapes with 3 sides!

48
Key Words Regular Shape Parallel Perpendicular Vertex Diagonal Bisect

49
**Regular Shape Shapes are regular when**

All their sides are the same length All their angles are the same size

50
**when they are always the same distance apart.**

Parallel Lines are parallel when they are always the same distance apart.

51
**when they meet at right angles.**

Perpendicular Lines are perpendicular when they meet at right angles.

52
Vertex A Vertex is a corner of a shape where two lines meet.

53
Diagonal A Diagonal is a straight line that joins one corner (vertex) of a shape to a non adjacent corner (vertex)

54
Bisect A line that cuts a shape exactly in half, Bisects the shape

55
Key Words Regular Shape Parallel Perpendicular Vertex Diagonal Bisect

56
Polygons Shapes with many sides!

57
What shape is this?

58
A Hexagon

59
**How many lines of symmetry does a hexagon have?**

4 1 2 5 6 3

60
**Properties of a Regular Hexagon**

Has 6 equal sides Has 6 equal angles Has 6 lines of symmetry

61
What shape is this?

62
A Pentagon

63
**How many lines of symmetry does a pentagon have?**

1 3 4 5 2

64
**Properties of a Regular Pentagon**

Has 5 equal sides Has 5 equal angles Has 5 lines of symmetry

65
Polygons Shapes with many sides!

66
**Lines of Symmetry - Look at these shapes**

Can you suggest a rule?

67
**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

68
**How many lines of symmetry?**

Look at these shapes Heptagon Octagon How many lines of symmetry?

69
Lines of symmetry Heptagon Octagon 7 8

70
Lines of symmetry Heptagon Octagon 7 8

Similar presentations

OK

Jose Pablo Reyes. Polygon: Any plane figure with 3 o more sides Parts of a polygon: side – one of the segments that is part of the polygon Diagonal –

Jose Pablo Reyes. Polygon: Any plane figure with 3 o more sides Parts of a polygon: side – one of the segments that is part of the polygon Diagonal –

© 2018 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google