Section
1.1
1.1
Point
Has no dimension Represented by a Dot.
Congruent Segment
Segments that have the same length
Polygon
A plane shape with straight sides
Complemetary Angle
Angles that add to 90
Angle
Two rays with common Endpoints. Common end point is the vertex rays are the sides of the angle
Line
Goes indefinitely in two directions
Segment Addition Postulate
Common Rule If B is between A and C then AB+BC+AC
Concave
Polygon that is “Dented”
Supplementary Angle
Angles that add to 180
Acute Angle
Less than 90
Plane
Two dimensional space
Midpoints
Point that divides a segment into two congruent Segments
Convex
Polygon that is “Dented”
Adjacent Angle
Two angles that share a side and a vertex, but do not have a common interior Points
Right Angle
Exactly 90
Collinear
Points on the same line
Midpoints Formula
The coordinates of the mid point of the segment are the average of the x-Coordinates and the Y-Coordinates of the end points.
Angle addition Postulate
If P is in the interior <
Linear Angle
Adjacent angles where noncommon lines make opposite rays Linear Angles are Supplenetary
Obtuse Angle
More than 90
Coplanar
Points on the same plane
Distance Formula
Angle Bisector
A ray divides one angle into two congruent angles
Vertical Angle
Two angles that are sharing a vertex and whose sides make opposite rays Vertical Angles are Congruent
Straight Angle
Exactly 180