Shape vocabulary

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Across
  1. 4. Any 2D straight-sided shape
  2. 7. Used for circle calculations
  3. 8. Longest length through a circle
  4. 10. The shape of a ball
  5. 11. A 3D shape with polygon cross-section
  6. 12. A cylinder net has two circles and a _____
Down
  1. 1. Another name for a rectangular prism
  2. 2. Has a net with many triangles
  3. 3. Its net is 6 squares
  4. 4. The distance around a shape
  5. 5. The perimeter of a circle
  6. 6. The opposite sides of a rectangle are _____
  7. 9. Distance from centre to outside of circle