Fun Shapes

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Across
  1. 3. A flat shape with 4 straight sides where opposite sides are parallel.
  2. 5. 2 faces no edges no vertices
  3. 7. Curved inwards
  4. 8. Three sided shape
  5. 9. A 3-dimensional object shaped like a ball.
Down
  1. 1. A 3 dimensional object that has 4 2D squares
  2. 2. Curved outwards
  3. 4. 8 sides
  4. 6. The same shape and size, but we are allowed to flip, slide or turn.