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Geometry Basic Terms

TermDefinition
the place in space that is usually represented by a dot point
a straight path that goes on forever in both directions line
part of a line that can be measured and has two endpoints line segment
part of a line having only one endpoint ray
two rays having the same endpoint angle
the point that two rays of an angle have in common vertex (vertices)
a point at the end of a ray endpoint
endless infinite
two lines/rays that never cross parallel
two lines/rays that cross intersect
two lines/rays that form a PERFECT corner perpendicular
less than a right angle or 90 degrees acute angle
greater that a right angle or 90 degrees obtuse angle
a perfect corner or 90 degrees right angle
a straight line or 180 degrees straight angle
a three sided polygon triangle
triangle with no sides the same length scalene
triangle with 2 sides the same length isosceles
triange with 3 sides the same length equilateral
Created by: denabrown
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