Tony Kim

2. a point on a line segment that divides it to two congruent parts
6. perpendicular segment from a vertex to a line that contains the opposite side
7. Quadrilateral with four right angles
10. A triangle that has an angle bigger than 90 degrees
13. transformation that preserves congruence
17. A line that intersects two or more coplanar lines at different points.
19. Formed by interchanging the hypothesis and the conclusion if an if-then statement
21. Symmetry where there is a rigid transformation that maps a figure to itself over the line of symmetry
22. ___ Property states if a=b, and b=c, then a=c
24. A statement you think is true but have not yet proven.
26. a transformation such that all points of the pre image move through certain degree about a point
27. The intersection of all three angle bisectors in a triangle
28. Quadrilateral with two distinct pairs of congruent adjacent sides
30. a statement that has to be proven before it is accepted as true.
34. points or lines that lie together on the same plane
37. All three sides in a triangle are congruent
38. The intersection of all three perpendicular bisectors in a triangle
39. Two lines or planes that intersect to form right angle
41. A directed line segment

1. a statement that is accepted without proof(common sense)
3. Two angles that add up to 180
4. Two angles that add up to 90
5. a ray or a line that divides an angle into two congruent angles
8. If the two figures have the same size and shape, then they are ___
9. a quadrilateral with both pairs of opposite sides parallel
11. a rigid transformation in which all points of the preimage slide in the same direction
12. a rigid transformation that maps a pre image to itself.
14. ___ lines are coplanar lines that do not intersect
15. Quadrilateral with at least 1 pair of parallel sides
16. a line segment that connects a vertex to the midpoint of the opposite side
18. A single statement where the conditional and the converse are both true. new statement can be made using "if and only if"
19. A shape where there are no indentations,less than 180 degrees
20. All three angles in a triangle are congruent
23. Triangle with at least 2 sides
25. A geometric object before a translation has been applied
29. from latin "--" meaning within and "-------" to be written or drawn
31. If a set of lines do not intersect, then they are ___
32. Quadrilateral with four right and congruent angles
33. Triangle with no congruent sides
35. Quadrilateral with four congruent sides
36. Greek mathematician who is considered the "father of geometry"
40. points that all lie on same straight line