Geomtery H-Chapter 4 Congruence
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Created by:
12jferguson3 on November 2, 2009
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25 terms
Terms | Definitions |
|---|---|
 origin | a starting point |
| coordinate | a number assigned to a point |
| one-dimensional coordinate system | a system with an origin and a ruler |
| two-dimensional coordinate system | a system witha plance where points can be located |
| axes | two perpendicular lines |
| x-axis | horizontal axis, labeled "x" |
| y-axis | vertical axis, labeled "y" |
| quadrant | regions identified by numbers |
| coordinate | used to find the distances between points inthe plane |
| coordinates | two __________ in our system locate a point on a plane |
| polygon | connected set of at least three line segments in teh same plane such taht each segment intersects exactly twoothers, one at each midpoint |
| polygon | "figure bounded by line segments that lies in a plane |
| sides | line segments are the _____ of a polygon |
| vertices | the endpoints of a polygon are it's ______ |
| n-gon | If n is the this number of sides, the polygon is a _________ |
| congruent | same size and shape |
| correspondence | an attribute of a shape or relation |
| congruent | two triangles are _____ iff there is a correspondence between their vertices such taht all of their corresponding sides and angles are equal |
| included, opposite | the words ______ and __________ describe the relative positions of the sides and angles of a triangle |
| scalene | a triangle iff it has no equal sides |
| isosceles | a triangle iff it has at least two equal sides |
| equilateral | a triangle iff all of its sides are equal |
| obtuse | a triangle iff it has an obtuse angle |
| acute | a triangle iff all of its angles are acute |
| equilangular | a triangle iff all of its angles are equal |
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