2d shapes

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Across
  1. 2. has 1 curved side and 1 straight side
  2. 3. line between 2 corners that are next to each other
  3. 7. 2 longer and 2 shorter sides, 4 right angles
  4. 9. has 10 divided by 2 sides
  5. 10. where 2 sides connect
Down
  1. 1. line between 2 corners that ar not next to each other
  2. 3. looks like a rectangle except all sides have same size
  3. 4. an octagon has ........ sides
  4. 5. has three sides and three corners
  5. 6. 4 sides that are all the same size, no right angles
  6. 8. the side of an oval is..........