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# Wert Geometry

## Terms

undefined, object
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point
a location in space with no dimension
rectangle
quadrilateral with four right angles
altitude
perpendicular segment from a vertex
symmetric property of equality
ab=ba
line
a set of points in a certain direction
addition property of inequality
a>b then a+c> b+c
multiplication property of inequality
a>b then ac>bc is c>0
congruent
having the same size and shape
addition property of equality
a=b, c=d, then a+c= b+d
regular quadrilaterals
square and rhombus (all equal sides)
bisector
line, segment, ray, or plane that intersects a segment at its midpoint
kite
quadrilateral with 2 pairs of congruent sides, but not opposite sides
rhombus
quadrilateral with four congruent sides
skew lines
non-coplanar lines that never intersect
plane
a flat surface that extends forever in all directions
transitive property of inequality
a>b, b>c, then a>c
transitive property of equality
a=b, b=c, then a=c
trapezoid
quadrilateral with exactly one pair of parallel sides
substitution property of equality
a=b, then they can be substituted for each other
median
segment from a vertex to a midpoint
isosceles trapezoid
quadrilateral with congruent non parallel sides
transversal
a line that intersects 2 or more lines
multiplication property of equality
a=b, then ac=bc
space
set of all points in the universe
square
quadrilateral with four right angles and four congruent sides

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