math project

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Across
  1. 5. a 3d shape with one polygon base
  2. 6. the top of the triangle
  3. 7. a 2d object that can fold into a 3d shape
  4. 8. makes a perfect point for a box
  5. 9. an x and y coordinate value
  6. 11. the area of all of the faces
  7. 12. has equal angles and sides
  8. 13. shape with three or more line segments
  9. 15. the distance around a shape
Down
  1. 1. all of the sides are different
  2. 2. has two sides that are the same length
  3. 3. the inside of a 3d shape
  4. 4. lines that meet and don't cross
  5. 10. the amount of surface on a shape
  6. 14. a 3d shape with lateral faces