Shapes

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Across
  1. 3. No sides, it goes round and round
  2. 4. 4 sides, all the same length
  3. 6. The symbol of love
  4. 7. A shape like a watermelon
Down
  1. 1. 4 sides, but different width and height
  2. 2. 1 slice of pizza
  3. 5. The shape of a stop sign