Crossword

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Across
  1. 2. 3.14
  2. 4. Distance from center of a circle to the side
  3. 5. Perimeter of a circle
  4. 7. 3D version of a triangle
  5. 9. Amount of substance that a 3D object can hold
  6. 10. Boundary of a 2D object
  7. 11. 3D version of a rectangle
Down
  1. 1. A two-dimensional figure made up of basic two-dimensional shapes
  2. 3. Outside layer of an object
  3. 6. Distance from one side of circle to the other
  4. 8. Space in an 2D object