Point
A point is a location with no size or shape
Line
A line is made up of points with no thickness or width
Plane
A plane is a flat surface made up of points that extends indefinitely in all directions
Col-linear
Points that lie on the same line, non col-linear points that don't lie on the same line
Co planar
Points that lie on the same plane. Non co planar points don't lay on the same line
Line Segment
A measurable part of the line consisting of two endpoints
Distance Formula
A formula used to find the distance between two points on a coordinate plane
Congruent Segments
If two segments have the same length then the are congruent
Midpoint Formula
A formula used to find the midpoint between two endpoints
segment bisector
a segment, ray, line, or plane that intersects a segment at its midpoint
Ray
A line that extends indefinitely in one direction
Angle
the intersection of two rays at an endpoint
Vertex
The common endpoint of an angle (where the sides intersect)
Right Angle
an angle that measures 90 degrees
Acute Angle
an angle that measures less than 90 degrees
Obtuse Angle
an angle greater than 90 degrees
congrent angles
angles that have the same measure are congruent
Adjacent Angles
Two angles that share a common side and vertex. Next to each other
vertical Angles
Two angles with measures that have a sum of 90 degrees but do not have to be adjacent
Complimentary angles
two angles that add up to 90 degrees
supplementary angles
Two angles whose sum is 180 degrees
Linear Pair
Adjacent angles that are supplementary. Combined, they form a straight line.
perpendicular
Two lines that intersect at a 90 degree right angle
Angle Bisector
A line or ray that divides an angle into two equal parts