Across
- 3. at least one diagonal is outside the polygon in order to make this
- 7. on the same plane
- 9. point on a segement that is the same distance from both enpoints
- 12. formed by two rays that share a common endpoint
- 13. on the same line
- 14. a polygon that is equiangular and equilateral
- 15. angles that share a vertex and common side & forms a line
- 17. triangle that has all three angles measuring between 0 and 90 degrees
- 18. if the measure of an angle is 30 degrees, the measure of its ______ angle is 330 degrees
- 19. congruent angles formed by two intersecting lines; share a common vertex; no common side
- 20. This is an example of the longest chord in a circle
- 23. Segment that connects one midpoint to another midpoint.
- 25. SSA and ________ cannot prove triangle congruency
- 28. Midpoint this property uses the following formula (two words)
- 29. same size and shape
- 31. A point where two angles begin or meet
- 32. two angles whose sum is 90 degrees
- 34. A triangle can be constructed if the sum of its two sides is _________than the third
- 35. segment consists of two endpoints & all points between them are collinear (two words)
- 37. The sum of the angles in a _________ is 1,080 degrees
- 39. line segment that connects two nonconsecutive vertices
- 40. a line segment joining a vertex to the midpoint of the opposing side
- 41. The _______ of the exterior angles of a n-gon is 360 degrees
Down
- 1. A _______ is a way to show something is true
- 2. point of concurrency for the angle bisectors in a triangle
- 4. arc that is larger than a semicircle
- 5. Sum Conjecture that states that the sum of all the angles in a triangle equal 180 degrees (two words)
- 6. Pairs angles that share a vertex and common side & forms a line (two words)
- 8. divides segment or angle into two congruent parts
- 10. two lines that do not intersect and are coplanar
- 11. Property in a proof that states that AB = AB
- 16. when a set of lines has a point in common
- 18. begins at a point and extends infinitely in one direction
- 21. point of concurrency for the perpendicular bisectos in a triangle
- 22. triangle whose angles and sides are all different
- 24. a line segment whose endpoints lie on the circle
- 26. a line segment through a vertex and perpendicular to a line containing the base
- 27. intersection that forms 90 degree angles
- 29. CPCTC: "__________ part of congruent triangles are congruent"
- 30. point of concurrency for the altitudes in a triangle
- 33. the sum of the two ______ interior angles is equal to the exterior angle
- 36. a line that intersects a circle at one point
- 38. This is half of the diameter