Line Segment­­­piece of a line with two endpoints
Ray­­­piece of a line with one endpoint
What are the three undefined terms, and describe them?
opposite rays­­two colinear rays with a common endpoint.
what is the intersection of 2 lines?
what is the intersection of 2 planes?
How many and what type of points define a plane?
parallel lines­­­lines in the same plane that never intersect
skew lines­­­non­coplanar lines that never intersect
Parallel planes­­­planes that never intersect.
congruent ­vs­ equal Congruent is for comparing, know the things are the same, but we do not know the numeric measurement. Equal­­compare but we know the numeric measurement.
Ruler Post: the points of a line can be put to a one­to­one correspondence with the real numbers so that the distance between any two points is the absolute value of the difference Aug 23­7:41 AM
Aug 23­9:27 AM
segment addition post: if three pts,A,B,C, are collinear and B is between A and C, then AB+BC=AC
Aug 23­9:58 AM
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