Term

Definition
Coplanar lines that do not intersect. 


Term

Definition
Triangles with the same size and shape. 


Term

Definition
A triangle with at least 2 sides congruent. 


Term

Definition
The angles of a triangle that are not adjacent to a given exterior angle. 


Term

Definition
A line that intersects two or more lines in a plane at different points. 


Term

Definition
Lines that do not intersect and are not coplanar. 


Term

Definition
A statement that can be easily proved using a theorem. 


Term

Definition
The truth or falsity of a statement. 


Term

Definition
A statement that is proven true. 


Term

Definition
A statement that is accepted as true. 


Term

Definition
Opposite meaning of original statement. “Not” ~ 


Term

Definition
Negate the hypothesis and conclusion. 


Term

Definition
Reasoning that uses specific examples to arrive at a conjecture. 


Term

Definition
Uses laws to arrive at a conclusion. 


Term

Definition
Example that proves a conjecture false. 


Term

Definition
Switch the hypothesis and conclusion. 


Term

Definition
Negate and switch the hypothesis and conclusion. 


Term

Definition
A statement that can be written in “ifthen” form. 


Term

Definition
An educated guess based on known information. 


Term

Definition
Two nonadjacent angles formed by two intersecting lines. 


Term

Definition
Two angles with measures that have a sum of 180. 


Term

Definition
A segment, line, or plane that intersects a segment at its midpoint. 


Term

Definition
A CONVEX polygon in which all of the sides and angles are congruent. 


Term

Definition
Lines that form right angles. 


Term

Definition
The point halfway between the endpoints of a segment. 


Term

Definition
A pair of adjacent angles whose noncommon sides are opposite rays. 


Term

Definition
Has two endpoints, is finite. 


Term

Definition
Two angles with measure that have a sum of 90. 


Term

Definition
Points that lie in the same plane. 


Term

Definition
Points that lie on the same line. 


Term

Definition
A ray that divides an angle into two congruent angles. 


Term

Definition
Two angles that share a common side and vertex but don’t overlap. 

