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Geometry Real life application of mathematic (Geo-Earth and Metron-Measurements)
Point No size or shape, describes a location, named by a capital letter, and represented by a dot
Line Made up of points that extend infinitely on opposite directions
Plane 2 dimension (made up of points & lines)
Space 3D Dimension
Collinear Points on the same line
Non-Collinear Not on the same line
Segment Parts of a line with 2 fixed endpoints All segments are part of a line
Rays Part of a line with1 fixed end point and extents in one direction
Ruler Postulate Maps Real numbers onto a line Lets us find the distance between 2 pts
Segment Addition Postulate If B is between A&C then
Congruent Same size and shape
Midpoint Segment A point divides a segment into 2 congruent parts
Bisector of a Segment Line can bisect a segment Ray and Plane can bisect a segment A line, ray, segment, or plane that intersects a segment at it's midpoints
Angle 2 rays with a common endpoint
Two Rays Sides of the angle
Common endpoint Vertex
3 ways to name an angle 1. Angle L 2. By a number 3. By 3pts
Acute angle An angle that is less than 90 degrees
Right angle An angle that is 90 degrees
Obtuse angle Greater than 90 degrees less than 180 degrees
Straight angle 180 degrees (opposite rays form a straight line)
Angle Addition Postulates Let me add adjacent angles together to get the larger angle.
Created by: DemiColon