2-D and 3-D Shapes

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Across
  1. 4. the area of a 3-dimensional figure minus the base area
  2. 7. 3-dimensional shape with one polygonal base and a vertex
  3. 8. the total length around a rectangle
  4. 10. 2-dimensional shape with 6 sides
  5. 12. 2-dimensional shape with no edges
  6. 14. 2-dimensional shape with 1 set of parallel sides and no right angles
  7. 18. perimeter of a circle
  8. 19. 2-dimensional shape with 3 sides
Down
  1. 1. 3-dimensional shape with 4 rectangle faces and 2 rectangle bases (2 words)
  2. 2. 2-dimensional shape with 4 sides and 4 right angles with unequal length and width
  3. 3. 3-dimensional shape with 2 circular bases
  4. 5. 3-dimensional shape with a curved surface and no edges
  5. 6. 3-dimensional shape with a 2 triangle bases (2 words)
  6. 9. half of the diameter of a circle
  7. 11. 2-dimensional shape with 8 sides
  8. 13. 3-dimensional shape with a circular base and a vertex
  9. 15. measurement of space inside a 3-dimensional figure
  10. 16. 2-dimensional shape with 4 equal sides
  11. 17. measurement of the space inside a 2-dimensional shape