Geometry Vocab.
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32 Terms
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Acute Angle
Angles that measure less than 90 degrees
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Area
the number of square units enclosed by a figure
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Vertical Angles
two angles whose sides form two pairs of opposite rays
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Intersection
a place or area where two or more things intersect
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Midpoint
the point that divides the segment into two congruent segments
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Perpendicular Lines
lines that intersect and form right angles
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line
a line is endless in both directions
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Obtuse Angles
an angle whos measure is more than 90 degress but less than 180 degress
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Plane
a flat surface
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right angle
an angle whose measure is 90 degress
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theorem
a statement that has been proved based on facts
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Angle
formed by two rays with the same endpoint
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between
something in the middle of two objects
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Congruent
identical in form
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Complementary angles
when the sum of two angles is equal to 90 degress
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Linear Pair
two adjacent angles that sum to 180 degrees. they share a common vertex and a common arm
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Opposite Rays
two rays that have the same endpoint and extend in opposite directions
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Point
a location in any space
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segment bisector
a line, line segment, ray, or point that cuts a line segment exactly in half
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angle bisector
a line that splits an angle into two equal angles
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collinear
3 or more poinys lying on the same straight line
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constructions
accurate drawings of shapes, angles and lines in geometry
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line segment
a line bounded by two endpoints on both sides
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ray
bound by a endpoint on one side and goes on in the other direction forever
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vertex
an angular point where two or more lines meet
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supplementary angles
either of two angles whose sum is 180 degrees
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concurrent lines
Three or more lines in a plane meet each other at one common point
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Postulate
an accepted statement or fact
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adjacent angles
two angles that share the same vertex and side
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base
the surface
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distance from a point on a line
the length of the perpendicular segment from the point on the line
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distance between two points on a line
the absolute value of the difference of the coordinates of the points
Note 
Flashcards (53)