Pyramids

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Across
  1. 6. Area cubed inside of a shape
  2. 7. A shape where triangular faces converge to one single point
  3. 10. Distance around a 2-D object
  4. 11. Three-sided figure
  5. 13. A 2-D shape where all angles and sides are equal
  6. 14. Bottom of a pyramid
  7. 15. Converging point of all faces
Down
  1. 1. 90º angle to any surface
  2. 2. Net of all shapes that make up an object
  3. 3. Side of a pyramid
  4. 4. Vertical height of a pyramid
  5. 5. Distance from base to converging point of all faces
  6. 8. Total units squared of a 2-D object
  7. 9. A shape that is made up of 2 or more basic geometric shapes
  8. 12. A line from the center of a regular polygon perpendicular to a given side