Unit #3 Vocabulary

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Across
  1. 4. a ray that divides an angle into two smaller congruent angles
  2. 7. an algebraic or geometric rule that is considered to be self-evident
  3. 8. a type of proof that logically organizes an argument with statements and reasons, written in complete sentences
  4. 11. the inner of the two angles formed where two sides of a polygon come together
  5. 12. type of proof where left-hand column lists statements and the right-hand column lists the corresponding numbered “reasons”
  6. 13. two congruent _______ which are exactly the same shape and size; in which all sets of corresponding sides and angles of the two figures are congruent
Down
  1. 1. a point, ray, line, segment, or plane that intersects a segment at its midpoint
  2. 2. any angle that is greater than 90 degrees buts less than 180 degrees
  3. 3. each of the pairs of opposite angles made by two intersecting lines
  4. 5. a logically true statement that follows logically from other true statements
  5. 6. two angles that have the same measurement
  6. 9. any angle less than 90 degrees
  7. 10. the point that divides a line segment into two smaller, congruent portion