What are their shapes?

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Across
  1. 2. BICYCLE TIRES
  2. 3. SCHOOL LOGO
  3. 5. CLASSROOM DOOR
  4. 7. BEE HIVE
  5. 9. EGG
Down
  1. 1. PIZZA SLICE
  2. 4. STOP SIGN
  3. 5. KITE
  4. 6. ROOF
  5. 8. DICE