Geometry Vocabulary

5. what we say about two lines that do not intersect
8. the halfway point between two other points
11. a type of triangle where only two of the sides are congruent
12. an If......., then....... statement in mathematics
13. what we say about two lines intersecting to form four right angles
15. if two lines have the same length we would say that they are ........
17. a type of triangle where all three sides are congruent
19. another form for a conditional where ~q implies ~p
20. a line that is perpendicular to a side of a triangle which goes through the opposite vertex

1. an example that shows where a conditional fails
2. something that we assume to be true but do not prove
3. the intersection point for the three angle bisectors of a triangle
4. a tool that allows you to draw a straight line
6. something that I think is true and am trying to prove
7. the intersection point for the three perpendicular bisectors of a triangle
9. a line segment drawn from a midpoint of a side in the triangle to the opposite vertex
10. another form for a conditional where q implies p
14. another form for a conditional where ~p implies ~q
15. a tool that allows you to draw a circle
16. the intersection point for the three medians of a triangle (also viewed as the center of mass)
18. the intersection point for the three altitudes of a triangle