2D shapes

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Across
  1. 2. a three-sided shape
  2. 5. a ten-sided shape
  3. 6. a six-sided shape
  4. 7. a five-sided shape
Down
  1. 1. four-sided shape where all sides are the same length
  2. 3. four-sides shape sides are not the same length
  3. 4. a seven-sided shape