Shapes crossword

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Across
  1. 1. The sides of the shapes
  2. 4. When something is not straight
  3. 7. This is a fancy way of calling corners
  4. 9. a shape with only width and length
  5. 10. A line going up or down
  6. 12. has three edges
Down
  1. 2. has four edges
  2. 3. A shape with length, breadth and depth
  3. 5. A straight line going right or left
  4. 6. The same of
  5. 8. when two sides of the shape are the same when folded
  6. 11. The space between two intersecting lines