Across
- 4. an angle with more than 90 degrees
- 8. two nonadjacent angles formed by two intersecting lines
- 10. a dilation in which the scale factor is less than 1
- 15. two angles that lie in the same plane, have a common vertex and side, but no common interior points
- 22. two angles whose measurements have a sum of 180
- 23. the point of concurrency of the angle bisectors of a triangle
- 24. the rays of an angle are called ___
- 25. an angle less than a 90 degrees
- 26. the point halfway between the endpoints of that segment
- 27. the point of concurrency of the medians of a triangle
- 30. a pair of adjacent angles whose noncommon sides is a straight line
- 31. a process that includes looking for patterns to form logical arguments is called ___ reasoning
- 32. a dilation in which the scale factor is greater than 1
- 33. any segment, line, or ray that intersects at a segments midpoint is called a ___
- 36. an angle that is 180 degrees
- 39. the statement formed by switching the hypothesis and conclusion of a conditional statement
- 40. the statement formed by negating and switching the order of the conditional statement
- 41. a__ is a flat surface made up of points
- 42. an angle that is 90 degrees
- 43. points on the same plane are called ___
- 44. a polygon in which all sides are congruent
- 47. M is __ points P and Q if and only if P, Q, and M are collinear and PM + MQ = PQ
- 49. the "if" part of a conditional statement
- 51. a triangle with none of the sides congruent
- 52. a specific case for which a conjecture is false
- 53. the common endpoint of the rays of an angle is called the ___
- 54. a segment from a vertex to the midpoint of the opposite side
- 55. an unproven statement that is based on observations
Down
- 1. the statement formed by negating the conditional statement
- 2. points on the same line are called __
- 3. a logical statement that has a hypothesis and a conclusion is called a ___ statement
- 5. a transformation that slides a figure
- 6. a line that intersects two or more parallel lines
- 7. the point of concurrency of the perpendicular bisectors of a triangle
- 9. a ___ represents a location
- 11. a transformation in which the figure is enlarged or reduced
- 12. lines that do not intersect and are coplanar are called ___
- 13. points that represent the ends of a line segment
- 14. the "then" part of a conditional statement
- 16. lines that do not intersect and are not coplanar are called ___
- 17. two angles whose measures have a sum of 90
- 18. a ray that divides an angle into two congruent angles is an ___
- 19. a ___ statement contains the phrase "if and only if"
- 20. part of a line with two end points
- 21. to have the same measures
- 28. part of the line that has an endpoint and goes on forever in one direction
- 29. a polygon with all sides and all angles congruent is called a ___ polygon
- 34. a transformation in which a figure is turned about a fixed point
- 35. a transformation that uses a line like a mirror to reflect a figure
- 37. a figure formed by two rays with a common endpoint
- 38. the two congruent sides of an isosceles triangle are called ___
- 45. a process of using facts and definitions to form a logical argument is called ___ reasoning
- 46. a triangle with at least two sides congruent is called ___
- 48. a polygon in which all angles are congruent
- 50. the point of concurrency of the altitudes of a triangle