A location represented by a capital letter
A point
A point that is located on the inside of an angle
Interior
Flat closed shape formed by straight lines
Polygon
Statement in IF-Then form
Conditional statement
A polygon with all sides and angles equal
Regular polygon
Extends forever in both directions and represented by lower script letter
A line
Angles next to each other
Adjacent angles
Three sided shape is called
Triangle
The part of a statement after the word IF
Hypothesis
Part of a line is called
Line segment
Flat surface named by 3 non-collinear points.
A plane
Angles that add up to 90 degrees
Complimentary angles
4-sided polygon is called
Quadrilateral
This proves a statement wrong
Counterexample
Points in the same plane
Coplanar
Part of a line that has one endpoint and extends infinitely in one direction from the endpoint
Ray
2 angles on a line that add up to 180 degrees
Linear pair
*** Triple ***
N-sided polygon is called
N-gon
Statements connected by AND
Conjunction
** DOUBLE **
Sides or angles with same measures are called
Congruent
** Double **
A common point of an angle
Vertex
Angles formed by 2 crossing lines and opposite each other
Vertical angles
Seven sided polygon is called
Hepta or Septa-gon
This determines if the statement is true or false
Truth value
Lines that intersect at 90 degree angle
Perpendicular lines