2D Shapes

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Across
  1. 4. I am something you fly in the sky
  2. 5. I am a line segment where two faces meet.
  3. 6. I keep the honey safe inside me
  4. 9. I am a slice of pizza
Down
  1. 1. I have infinite lines of symmetry and corners
  2. 2. I am the Dockland office building in Hamburg, Germany
  3. 3. I am a closed figure that can take any form
  4. 7. you'll find me on intersecting roads on a sign
  5. 8. I am made of wood and you need a pen to write on me