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Properties of 2_d_3d_shapes

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  • 1. Objective: To describe properties of solid shapes such as perpendicular and parallel lines, faces and edges
  • 2. PART 1 SOLID SHAPES
  • 3. Two-dimensional Shapes (2D)
    • These shapes are flat and can only be drawn on paper.
    • They have two dimensions – length and width.
    • They are sometimes called plane shapes.
  • 4. Three-dimensional Shapes (3D)
    • These shapes are solid or hollow.
    • They have three dimensions – length, width and height.
  • 5. Face
    • Part of a shape that is flat.(Or curved)
    • E.g. A cube has 6
    • of these.
  • 6. Edge
    • The line where two faces meet.
    • E.g. A cube has 12 of these.
  • 7. Vertex (Vertices)
    • The place where three or more edges meet.
    • This pyramid has 4 of these.
  • 8. Parallel
    • These type of lines stay the same distance apart for their whole length. They do not need to be straight or the same length.
  • 9. Perpendicular
    • A line that is drawn in a right angle to another line .
    • In solid shapes edges could be at a right angle to one another.
    • Faces could also be at right angles to one another.
  • 10. Cube
    • A three-dimensional shape which has 6 square faces all the same size.
    Some faces parallel Some edges parallel Some faces perpendicular Some edges perpendicular
  • 11. Cuboid
    • A three-dimensional shape which has 6 rectangular faces.
    Some faces parallel Some edges parallel Some faces perpendicular Some edges perpendicular
  • 12. Sphere
    • A perfectly round three-dimensional shape, like a ball. It has only one curved face.
    No perpendicular faces or edges No parallel faces or edges
  • 13. Hemisphere
    • A three-dimensional shape that is half a sphere.
    No parallel faces or edges No perpendicular faces or edges
  • 14. Cone
    • A three dimensional shape with a circle at its base and a pointed vertex.
    No perpendicular faces or edges No parallel faces or edges
  • 15. Cylinder
    • A three-dimensional shape with circular ends of equal size.
    Some faces parallel Some edges parallel Some faces perpendicular No edges perpendicular
  • 16. Pyramid
    • A three-dimensional shape which has a polygon for its base and triangular faces which meet at one vertex.
    • E.g. Triangular pyramid
    • Square pyramid
    • Hexagonal pyramid
    • Pentagonal pyramid
  • 17. Square base pyramid No faces perpendicular Some edges perpendicular No faces parallel Some edges parallel
  • 18. Prism
    • A three dimensional shape that has the same cross-section all along its length.
  • 19. Written task Cube Cuboid Cone Square based- Pyramid Sphere Hemispere SOME PERPENDICULAR FACES NO PERPENDICULAR FACES SOME PARALLEL FACES NO PARALLEL FACES
  • 20. Written task Cube Cuboid Square-based pyramid Sphere Hemisphere Cone SOME PERPENDICULAR EDGES NO PERPENDICULAR EDGES SOME PARALLEL EDGES NO PARALLEL EDGES
  • 21. PART 2 PLANE SHAPES
  • 22. Polygons
    • Two-dimensional shapes that have sides made from straight lines.
    • E.g. triangles
    • squares
    • hexagons
  • 23. Quadrilaterals
    • Any two-dimensional shapes with four straight sides.
    • E.g. square
    • rhombus
    • rectangle
    • trapezium
    • kite
  • 24. Rectangle
    • A four sided two-dimensional shape with two pairs of parallel sides that meet at right angles.
  • 25. Kite
    • A two-dimensional shape with two shorter sides of equal length and two longer sides of equal length.
  • 26. Rhombus
    • A two-dimensional four sided shape with opposite sides that are parallel and all the sides are the same length.
  • 27. Trapezium
    • A two-dimensional shape with four sides.One pair of sides is parallel with one side longer than the other.
  • 28. Pentagon
    • A two-dimensional shape with five straight sides and five angles.
  • 29. Hexagon
    • A two-dimensional shape with 6 straight sides and 6 angles.
  • 30. Octagon
    • A two-dimensional shape with 8 straight sides and 8 angles.
  • 31. What do we call a shape with: 7 Sides? 9 Sides? 10 Sides?
  • 32. Circle
    • A round flat two-dimensional shape.
  • 33. Square
    • Two dimensional shape with 4 sides of the same length and 4 90° angles.
  • 34. Triangle
    • Two-dimensional shape with three straight sides and three angles.
    • Can you name 4 different kinds?