Across
- 3. exactly 90 degrees
- 6. intersects at 90 degrees (notation: ⊥)
- 7. common endpoint of ray
- 9. divides a figure into equal parts
- 12. a straight path infinite both directions (↔)
- 13. two angles measuring to 90 angrees
- 15. a point marking: end of a line segment or beginning of ray
- 17. below 90 degrees
- 18. partial line with an endpoint going infinitely one way (→)
Down
- 1. sharing a plane
- 2. indicates same value of angles
- 4. points sharing a line
- 5. part of a line with distinct endpoints (―)
- 8. above 90 degrees
- 10. same value (notation: ≅)
- 11. two angles measuring to 180 degrees
- 14. exact point in the middle making equal parts
- 16. measures 180 degrees