Geometry Crossword

12345678910111213141516171819
Across
  1. 1. the corners of a 3D shape
  2. 3. tool used to find surface area
  3. 5. boundry of a closed figure
  4. 9. 2 sets of parallel lines
  5. 12. the 'bottom' of a shape (not really)
  6. 15. this word is literally the name of the subject
  7. 16. the distance around a circle
  8. 18. flat surface on a 3D shape
  9. 19. included degrees
Down
  1. 2. hint: area with the bases included
  2. 4. hint: its not 2D
  3. 5. think of the cool structures in Egypt
  4. 6. synonym of 2D shape
  5. 7. length x width x height
  6. 8. length x width
  7. 10. Hint: everything but bases
  8. 11. half of the diameter
  9. 13. a line passing through a circle
  10. 14. theres a rectangular and triangular version of this 3D shape
  11. 17. A = 1/2 x (B1 + B2) x H