Geometry Crossword Puzzle

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Across
  1. 2. Prism with a rectangle base
  2. 4. An angle less than 90°
  3. 5. Two or more shapes combined to make a more complex shape
  4. 8. area of all the faces added up
  5. 10. Prism with a triangle base
  6. 14. A triangle with two equal sides
  7. 16. Pyramid with a square base
  8. 17. the distance around a circle
  9. 18. The distance around a shape
  10. 19. unfolded version of a three dimensional figure
  11. 20. the distance from the end of a circle to the center
Down
  1. 1. Pyramid with a triangle base
  2. 3. six sided figure with all equal sides
  3. 6. A triangle with no equal sides
  4. 7. An angle more than 90°
  5. 9. A triangle with all equal sides
  6. 11. An angle that is exactly 90°
  7. 12. the amount of space an object takes up
  8. 13. line segments that never intersect
  9. 15. the distance across a circle