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Foundations of Geometry
Ch 1
18
Mathematics
10th Grade
06/26/2012

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Cards

Term
What are the three undefined terms
Definition
Point, Line, Plane
Term
Space
Definition
the set of all points
Term
Collinear Points
Definition
points on the same line
Term
Coplanar Points
Definition
points on the same plane
Term
Segment
Definition
Two points on a line and all the points
between them
Term
Angle
Definition
The union of two rays with a common endpoint
Term
Acute Angle
Definition
Measures between 0 and 90 degrees
Term
Right Angle
Definition
Measures 90 degrees
Term
Obtuse Angle
Definition
Measures between 90 and 180 degrees
Term
Straight Angle
Definition
Measures 180 degrees
Term
Congruent Segments
Definition
Segments with the same length
Term
Congruent Angles
Definition
Angles with the same measures
Term
Postulates
Definition
Statements that are accepted without proof
Term
Theorems
Definition
Statements that can be proved
Term
Midpoint of a Segment
Definition
The point that divides the segment into two congruent segments
Term
Bisector of a Segment
Definition
A line, ray, segment of plane that intersects a segment at its midpoint
Term
Adjacent Angles
Definition
Two angles with a common vertex, common side but no interior points in common
Term
Bisector of an Angle
Definition
A ray that divides the angle into two congruent angles
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