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31 Cards in this Set
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 Back
A set of points all which lie on the same straight line.

Collinear Set of Points


A set of three or more points that do not all lie on the same straight line.

Noncollinear Set of Points


the absolute value of the difference of the corrdinates of the two points,

Distance Between Two Points on The Real Number Line


B is _________ A & C if and only if A,B and C are distinct collinear points

Between


a set of points consisting of two points on a line called endpoints and all points between the endpoints.

Line Segment


Distance between endpoints

Length or Measure of A Line Segment


segments that have the same measure

Congruent Segments


the point of that the line segment that divides the segment into two congruent segments

Midpoint of A Line Segment


any line or subset of a line that intersects the segment at its midpoint

Bisector of A Line Segemtn


Line RS is the sum ____ _______ _________, line RP and PS, if point P is between points R and S

Two Line Segments


A And B are ___ ____ ____ of pooint P if A, B, and P are collinear and P is not between A and B

On One Side


part of a line that sonsists of a point on the line called an endpoint and all the points on one side of the endpoints

Ray


two rays of the same line with a common endpoint and no other point in common

Opposite Rays


a set of pints that is the union of two rays having the same endpoint

Angle


an angle that is the union of opposite rays

Straight Angle


an angle whose degree measure is greater than 0 but less than 90

Acute Angle


an angle whose degree measure is 90

Right Angle


an angle whose degree measure is greater than 90 but less than 180

Obtuse Angle


angles that have the same measure

Congruent Angle


a ray whose endpoint is the vertex of the angle and that divides the angle into two congruent angles

Bisector of An Angle


a closed figure in a plane that is the union of line segments such that the segments intersect only at their endpoints and no segments share a common endpoint

Polygon


a polygon that has exactly three sides

Triangle


a triangle that has no congruent sides

Scalene Triangle


a triangle that has two congruent sides

Isosceles Triangle


a triangle that has three congruent sides

Equilateral Triangle


a triangle that has three acute angles

Acute Triangle


a triangle that has three congruent angles

Equangular Triangle


a triangle that has a right angle

Right Triangle


a triangle that has an Obtuse angle

Obtuse Triangle


lines that are in the same plane but have no points in common or have all points in common

Parallel Lines


two lines that intersect to form right angles

Perpendicular Lines
