Across
- 3. midpoint
- 5. circle
- 7. obtuse
- 11. reflection
- 12. cone
- 13. triangle
- 16. complementary
- 19. adjacent
- 21. segment
- 22. collinear
- 23. contrapositive
- 26. inverse
- 27. bisector
- 30. proportion
- 32. trapezoid
- 33. right
- 34. parallel
- 36. converse
- 38. supplementary
Down
- 1. cylinder
- 2. parallelogram
- 4. similar
- 6. equilateral
- 8. scalene
- 9. area
- 10. circumference
- 12. congruent
- 14. ratio
- 15. corresponding
- 17. hexagon
- 18. square
- 20. secant
- 22. cube
- 24. perpendicular
- 25. slope
- 28. isosceles
- 29. acute
- 31. rectangle
- 35. rhombus
- 37. diameter