Geometry Crossword

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Across
  1. 3. A shape with no sides
  2. 5. A mathematical term
  3. 7. A shape with 5 sides
  4. 9. A shape with 9 sides
Down
  1. 1. A shape with four equal sides
  2. 2. A shape with 8 sides
  3. 4. a shape with two sets of parallel lines
  4. 6. A shape with 6 sides
  5. 8. Three sided shape