Geometry Unit 3 - Important Terms (1-5)

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Across
  1. 1. two triangles are congruent if a side and the _______ angles of one are equal(or congruent) the the side and adjacent angles of the other: ASA Congruence
  2. 2. two triangles are congruent if the three ______ of one are equal (or congruent) to three sides of the other
  3. 5. the _____ is the sum of its parts
  4. 7. _______ parts of congruent triangles are congruent
  5. 8. when two quantities are equal to each other, one can be swapped out for the other
  6. 10. a(n) ________ bisector will pass through the midpoint of another segment
  7. 11. complements of equal angles are ______
  8. 12. a(n) ______ bisector will divide an angle into two congruent angles
  9. 13. if equals are subtracted from equals their ______ are equal
  10. 16. two triangles are congruent if two sides and the _______ angle of one are equal (or congruent) to the two sides and the included angle of the other: SAS Congruence
  11. 17. a truth that is so obvious that it doesn't need proving
Down
  1. 1. a line segment drawn from the vertex of a triangle such that it is perpendicular to the opposite side
  2. 3. a point that lies on the perpendicular bisector of a line segment will lie equidistant from its endpoints
  3. 4. when setting up a formal proof, the right column is always for _________
  4. 6. if equals are added to equals their ____ are equal
  5. 9. when two lines intersect to form 90°or right angles we say they are ________
  6. 14. a line segment drawn from a vertex of a triangle to the midpoint of the opposite side
  7. 15. a perpendicular bisector will pass through the _____ of another segment and make only a right angle