Unit 1 Geometry Terms

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Across
  1. 6. to cut in half
  2. 7. on the same line
  3. 9. the intersection of two planes
  4. 11. 2πr
  5. 13. the sum of the edges of a polygon
  6. 15. where two rays intersect in an angle
  7. 16. measured in square units
Down
  1. 1. solution of 4x-7=2x+3
  2. 2. an accepted statement of fact
  3. 3. adds to 90°
  4. 4. has no size or dimension
  5. 5. the "m" in m∠ABC
  6. 8. next to
  7. 10. ≅
  8. 12. lies on the same plane
  9. 14. half-line