Wednesday, 7 May 2014

Shadow play

 
Here are shadows of some 3D shapes.
What shapes could they be?
Think about what 2d shapes you can see and how that might help identify the 3d shape. 
Is there only one possible 3d shape for each?
 

34 comments:

  1. The circle could be a sphere, cylinder or cone. The square could be a cube.the triangle should be cone.the rectangle must be a cuboid. Also the triangle is a triangular prism or a cone or a pyramid.

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  2. The triangular prism the face looks like a triangle cause it has 3 side like a triangle. Also the body looks like a rectangle.

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  3. I think the circle would have a sphere shadow because it has a sphere face on the front and it looks the same.

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  4. I think a cuboid would have a rectangular shadow and a square because on the front of the shape it is a square and at the side of the shape is a rectangle!


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  5. the triangular prism could be an triangle because the face is shaped like an triangle so if it was an 2D shape it will be an triangle and now you see why a triangular prism but it could look's like an cuboid if you take away one angel

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  6. On the front of a triangle prism the shadow is shaped as a rectangle.

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  7. I think a triangular would have a triangular prism because the side has a triangular shape.

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  8. The circle must be a circle. Also the square should be a cube like a box.

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  9. The circle must be a sphere like a orange

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  10. one could be a circle and one is a square and one is a rectangle and it has a slim face also it is really long and as for the triangle and a circle can be a cone and a square can be a cylinder a circle is a 3d shape.TO BE CONTIUED.

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  11. I think the circle is a sphere because the face is shaped like a circle

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  12. I think the circle should be a cylinder, a cube should be a square, a triangle should be a pyramid and a rectangle should be a cuboid.

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  13. I think the rectangle is the cuboid shadows shadow because it has a rectangular face. The triangular prism has a rectangular face. the pyramid has a triangular face.

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  14. At the front of the cuboid is squared as a different shape.

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  15. I think the triangle could be a triangular prism because the face of the shape and the angle. I justify that the cube may actually be a square but in 3D shapes and not 2D shapes. The cone may be a triangle because the bottom bit of the shape is pointy but some of the shape at the tall bit may be pointy as well. The pyramid , the face of it is flat so in 2D the bottom bit must be flat. The sphere could be a circle but in 3D it is a sphere , in 2D it is a circle.

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  16. the triangular a cuboid all together and that will be a 3d shape.and the cylinder and cuboid can be a 3d shape. the cube and triangular will be in a half maby it coude be

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  17. I think a cuboid wold have a rectangular cosh the fest are rectangular con tin comment

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  18. 1. The circle shadow could be shaped like a cylinder, cone and last but not least it could also be a sphere.
    2. The square shadow could be shaped like a cuboid, sphere and a pyramid and last but not least it could also be a cube.
    3. The rectangle shadow could be shaped like a cuboid and also a triangular prism.
    4. The triangular prism shadow could be shaped like a cone and also a pyramid.

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  19. The circle would be a sphere, cylinder or cone. The square would be a cube, cuboid and a square based pyramid. The triangle would be a pyramid triangular prysim and a cone. The rectangle would be a cuboid, a rectangular prysim and a rectangle based pyramid.

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  20. The circle will be the sphere, The square will bee a cube, the triangle should be the cone.

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  21. The circle could be a sphere cone or cylinder. the square could be an cube cuboid or a cone.

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  22. the circle could be a sphere, or a cylinder also a cone the square could be a cube because in a 2d shape there still the same shapes but in different ways. the triangle could be a pyramid or a prisoner

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  23. The circle will be a sphere. The square would be a cube. The triangle will be a triangleprisom. The rectangle will be a cuboid.

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  24. The circle could be a sphere, or cylinder cone.
    The square might be cube or cuboid.
    The triangle could be a triangle prisnor or pyrimid.

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  25. The circle is going to be a sphere and a cylinder. The square is like a cube and a cuboid, the triangle is like a cone and a triangular prison.

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  26. The circle could be a sphere, cylinder or a cone.

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  27. The circle could be a sphere, cylinder or cone. The circle could be a square could be a cube or cuboid.

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  28. The circle could be a cone or a sphere and cylinder. The square could be a cube or cuboid.

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  29. The square might be a cube or a cuboid. The circle could be a sphere or a cone.

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  30. The circle could be a cylinder or sphere the square could be a cube or cuboid.

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  31. The circle could be a cone, sphere or cylinder. The square could be a cube or a cuboid.

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  32. The circle could be a cone like an ice cream of a sphere like a football. The square could be a cube like an ice cube or cuboid like a box or a suitcase. A cube has 6 faces and 8 vertices. Verictices are like corners.

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  33. The circle could be; a cylinder or a cone because cylinder have 2 circle faces on the top and bottom. Also it could be a cone, which has one circle face. it could be a sphere like a football or someones head!

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  34. The circle could be a share

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