shapes
shapes 2D
<ul><li>D stands for DIMENSIONS </li></ul><ul><li>The 2 dimensions are : </li></ul><ul><li>i.  Lengths </li></ul><ul><li>i...
What is a 2D shape ? L W L W L W L – The length of the shape W – The width of the shape The faces are  FLAT .
Face Corner Straight line Parts of a 2D shapes Angle
Face Corner ? Curve side Parts of a 2D shapes x Angle x
circle Names of 2D shapes circle square square triangle triangle oval oval rectangle rectangle pentagon pentagon hexagon h...
Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Circle Face : Round Side...
Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Square Face : Square Sid...
Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Triangle Face : Triangul...
Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Oval Face : Oval Sides :...
Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Rectangle Face : Rectang...
Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Pentagon Face : Pentagon...
Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Hexagon Face : Hexagon S...
Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Heptagon Face : Heptagon...
Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon circle square triangle oval rec...
Face Corner Straight line Parts of a 2D shapes Angle
Face Corner Straight line Parts of a 2D shapes Angle
Face Corner ? Curve side Parts of a 2D shapes x
Parts of a 2D shapes Face Corner Straight line Angle
Parts of a 2D shapes Face Corner  Curve side x
Guess what shape is this It has 3 straight sides and 3 corners… Answer :  Triangle
Guess what shape is this It has 4 equal sides and 4 corners… Answer :  Square
Guess what shape is this It has a round face. It has no corners… Answer :  Circle
Guess what shape is this It has 4 corners and 4 sides. 2 of the sides are longer… Answer :  Rectangle
Fill in the blanks Name : Face  : Sides  : Corners : Square square 4 equal sides 4
Fill in the blanks Name : Face  : Sides  : Corners : Rectangle Rectangular 4 straight sides 2 sides longer 4
Fill in the blanks Name : Face  : Sides  : Corners : Triangle Triangular 3 straight sides 3
Fill in the blanks Name : Face  : Sides  : Corners : Circle Round A curve side No corners
Fill in the blanks Name : Face  : Sides  : Corners : Oval Oval A curve side No corners
Polygons Characteristic of prisms
Types of 2D shapes ? <ul><li>There are 2 types of 2D shapes : </li></ul><ul><ul><li>polygon </li></ul></ul><ul><ul><li>non...
What are polygons? Polygons are 2D shapes with  only straight sides . Examples : Straight lines
What are polygons? Shapes with curve sides are  not  polygons. Examples : Curve sides
State whether these shapes are polygons Exercise √ √ x √ √ √ x x x √
Are these polygons or non-polygons ? Answer
Are these polygons or non-polygons ? √ x √ √ x x
shapes 3D
<ul><li>The 3 dimensions are : </li></ul><ul><li>i. Lengths (L) </li></ul><ul><li>ii. Width (W) </li></ul><ul><li>iii. Dep...
Names of 3D shapes cube sphere cylinder cone pyramid
Characteristic of prisms <ul><li>1. Have at least 2 identical bases </li></ul><ul><li>Have straight sides </li></ul><ul><l...
Square prism Types of 3D shapes
Parts of 3D shapes Face Base Vertex Edge
Rectangular prism Types of 3D shapes
Triangular prism Types of 3D shapes
lines Symmetry & Symmetrical shapes
Are these shapes symmetry? How to indicate symmetrical shapes
When the shape is cut out in two, are the cutouts the same? How to indicate symmetrical shapes same
When the shape is cut out in two, are the cutouts the same? How to indicate symmetrical shapes same
When the shape is cut out in two, are the cutouts the same? How to indicate symmetrical shapes same
Circle is a symmetrical shape. How to indicate symmetrical shapes The symmetry lines are many.
Is a square a symmetrical shape? How to indicate symmetrical shapes
How to indicate symmetrical shapes
So, is a square a symmetrical shape? How to indicate symmetrical shapes yes
How to indicate symmetrical shapes
So, is a triangle a symmetrical shape? How to indicate symmetrical shapes yes
State whether these shapes are symmetrical or not Exercise √ √ √ √ √ √ √ x x x
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Shapes

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Mengenal bentuk 2D

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Shapes

  1. 1. shapes
  2. 2. shapes 2D
  3. 3. <ul><li>D stands for DIMENSIONS </li></ul><ul><li>The 2 dimensions are : </li></ul><ul><li>i. Lengths </li></ul><ul><li>ii. Width </li></ul><ul><li>Shapes with these 2 dimensions are called </li></ul><ul><li>2D SHAPES . </li></ul><ul><li>The face of every 2D shapes are FLAT . </li></ul>What are 2D shapes ?
  4. 4. What is a 2D shape ? L W L W L W L – The length of the shape W – The width of the shape The faces are FLAT .
  5. 5. Face Corner Straight line Parts of a 2D shapes Angle
  6. 6. Face Corner ? Curve side Parts of a 2D shapes x Angle x
  7. 7. circle Names of 2D shapes circle square square triangle triangle oval oval rectangle rectangle pentagon pentagon hexagon hexagon heptagon heptagon octagon octagon
  8. 8. Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Circle Face : Round Sides : Curve side Corner : 0 Angle : 0
  9. 9. Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Square Face : Square Sides : Straight sides Corner : 4 Angle : 4
  10. 10. Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Triangle Face : Triangular Sides : Straight sides Corner : 3 Angle : 3
  11. 11. Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Oval Face : Oval Sides : Curve side Corner : 0 Angle : 0
  12. 12. Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Rectangle Face : Rectangular Sides : Straight sides Corner : 4 Angle : 4
  13. 13. Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Pentagon Face : Pentagon Sides : Straight sides Corner : 5 Angle : 5
  14. 14. Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Hexagon Face : Hexagon Sides : Straight sides Corner : 6 Angle : 6
  15. 15. Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Heptagon Face : Heptagon Sides : Straight sides Corner : 7 Angle : 7
  16. 16. Names of 2D shapes circle square triangle oval rectangle pentagon hexagon heptagon octagon circle square triangle oval rectangle pentagon hexagon heptagon octagon circle square triangle oval rectangle pentagon hexagon heptagon octagon circle square triangle oval rectangle pentagon hexagon heptagon octagon Name : Octagon Face : Octagon Sides : Straight sides Corner : 8 Angle : 8
  17. 17. Face Corner Straight line Parts of a 2D shapes Angle
  18. 18. Face Corner Straight line Parts of a 2D shapes Angle
  19. 19. Face Corner ? Curve side Parts of a 2D shapes x
  20. 20. Parts of a 2D shapes Face Corner Straight line Angle
  21. 21. Parts of a 2D shapes Face Corner Curve side x
  22. 22. Guess what shape is this It has 3 straight sides and 3 corners… Answer : Triangle
  23. 23. Guess what shape is this It has 4 equal sides and 4 corners… Answer : Square
  24. 24. Guess what shape is this It has a round face. It has no corners… Answer : Circle
  25. 25. Guess what shape is this It has 4 corners and 4 sides. 2 of the sides are longer… Answer : Rectangle
  26. 26. Fill in the blanks Name : Face : Sides : Corners : Square square 4 equal sides 4
  27. 27. Fill in the blanks Name : Face : Sides : Corners : Rectangle Rectangular 4 straight sides 2 sides longer 4
  28. 28. Fill in the blanks Name : Face : Sides : Corners : Triangle Triangular 3 straight sides 3
  29. 29. Fill in the blanks Name : Face : Sides : Corners : Circle Round A curve side No corners
  30. 30. Fill in the blanks Name : Face : Sides : Corners : Oval Oval A curve side No corners
  31. 31. Polygons Characteristic of prisms
  32. 32. Types of 2D shapes ? <ul><li>There are 2 types of 2D shapes : </li></ul><ul><ul><li>polygon </li></ul></ul><ul><ul><li>non-polygon </li></ul></ul>Polygons are 2D shapes with only straight sides . 2D shapes which have curved side are called non-polygons .
  33. 33. What are polygons? Polygons are 2D shapes with only straight sides . Examples : Straight lines
  34. 34. What are polygons? Shapes with curve sides are not polygons. Examples : Curve sides
  35. 35. State whether these shapes are polygons Exercise √ √ x √ √ √ x x x √
  36. 36. Are these polygons or non-polygons ? Answer
  37. 37. Are these polygons or non-polygons ? √ x √ √ x x
  38. 38. shapes 3D
  39. 39. <ul><li>The 3 dimensions are : </li></ul><ul><li>i. Lengths (L) </li></ul><ul><li>ii. Width (W) </li></ul><ul><li>iii. Depth (D) </li></ul><ul><li>Shapes with these 3 </li></ul><ul><li>dimensions are called 3D SHAPES . </li></ul><ul><li>The face of a 3D shapes can be FLAT or curve . </li></ul>What are 3D shapes ? L W D
  40. 40. Names of 3D shapes cube sphere cylinder cone pyramid
  41. 41. Characteristic of prisms <ul><li>1. Have at least 2 identical bases </li></ul><ul><li>Have straight sides </li></ul><ul><li>Have faces other than the bases in rectangular shapes </li></ul>
  42. 42. Square prism Types of 3D shapes
  43. 43. Parts of 3D shapes Face Base Vertex Edge
  44. 44. Rectangular prism Types of 3D shapes
  45. 45. Triangular prism Types of 3D shapes
  46. 46. lines Symmetry & Symmetrical shapes
  47. 47. Are these shapes symmetry? How to indicate symmetrical shapes
  48. 48. When the shape is cut out in two, are the cutouts the same? How to indicate symmetrical shapes same
  49. 49. When the shape is cut out in two, are the cutouts the same? How to indicate symmetrical shapes same
  50. 50. When the shape is cut out in two, are the cutouts the same? How to indicate symmetrical shapes same
  51. 51. Circle is a symmetrical shape. How to indicate symmetrical shapes The symmetry lines are many.
  52. 52. Is a square a symmetrical shape? How to indicate symmetrical shapes
  53. 53. How to indicate symmetrical shapes
  54. 54. So, is a square a symmetrical shape? How to indicate symmetrical shapes yes
  55. 55. How to indicate symmetrical shapes
  56. 56. So, is a triangle a symmetrical shape? How to indicate symmetrical shapes yes
  57. 57. State whether these shapes are symmetrical or not Exercise √ √ √ √ √ √ √ x x x
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