Proofs Geometry

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Across
  1. 2. If 3(x + 3)=6, then 3x + 9=6
  2. 6. Divides the segment into two congruent parts
  3. 8. A step in the process of solving an equation for a proof
  4. 12. If two angles are supplemental, then they are congruent
  5. 15. a=a, a value will always equal itself
  6. 17. An angle that is exactly 90 degrees, often made up of complementary angles
  7. 18. a line, segment, or plane, that goes through the midpoint of a segment
  8. 19. Proof that is used to solve angles
  9. 20. Proof that is used to solve algebraic equations.
  10. 22. If two angles are complemental, then they are congruent
  11. 24. If 12a=3b, then 4a=b
  12. 25. Proof that is used to solve a type of equation
  13. 26. If x=y, then y=x
Down
  1. 1. If a=b+c and d=c, then a=b+d
  2. 3. If 3b=2a - b, then 4b=2a
  3. 4. A value or equation that you start with and use to solve the equation
  4. 5. An angle that can be 1-89 degrees. CAN be complementary.
  5. 7. If a=b and b=c then a=c
  6. 9. a line that connects multiple points and endpoints
  7. 10. An angle that is exactly 180 degrees, often made up of supplementary angles
  8. 11. An angle that can be 91-179 degrees. Can NOT be complementary.
  9. 13. Line that divides something into 2
  10. 14. If and only if they have the same measure
  11. 16. If 3a=3b + a, 2a=3b
  12. 19. a ray, a plane, a line, or a segment that halves an angle
  13. 21. Two lines that intersect at an endpoint or ray
  14. 23. Proof that is used to solve segments