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15 terms

Geometry Vocab #1- PA7

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point
a location in space
collinear
points that lie on the same line
line segment
a part of a line consisting of two endpoints and all the points between
ray
a part of a line that begins at one endpoint and extends without end in the other directions
noncoplanar
points or lines that do not lie in the same plane
angle
the figure formed by two rays that have a common endpoint
line
a set of points that extends infinitely in two directions
plane
a flat surface that extends endlessly in all directions
noncollinear
points that do not lie on the same line
coplanar
points or lines that lie in the same plane
acute angle
an angle that measures less than 90 degrees
right angle
an angle that measures exactly 90 degrees
obtuse angle
an angle that measures greater than 90 degrees
straight angle
an angle that measures 180 degrees
perpendicular
two lines that intersect at a right angle are called