B. Geometry Symbols

123456789101112131415
Across
  1. 2. denoted by symbol rad
  2. 4. arcsecond
  3. 7. line that start from point A
  4. 9. |x-y|
  5. 10. arcminute
  6. 12. line from point A to point B
  7. 13. the most common unit for measuring angle
  8. 14. Δ
  9. 15. ≅
Down
  1. 1. ⌢
  2. 3. formed by two rays
  3. 5. line that doesn't intersect
  4. 6. grads angle unit
  5. 8. ~
  6. 11. angle measure 90°