GEOMETRY SYMBOLS

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Across
  1. 8. ∡ABC=30°
  2. 12. formed by two rays
  3. 13. ⊥
  4. 14. degree
  5. 15. line that start from point A
Down
  1. 1. ∢AOB=30°
  2. 2. arcsecond, 1'=60"
  3. 3. ∥
  4. 4. line from point A to point B
  5. 5. same sapes, not same size
  6. 6. =90°
  7. 7. arcminute, 1°=60'
  8. 9. infinite line
  9. 10. arc from point A to point B
  10. 11. 1 turn=360°