geometry unit 2 part 1 vocabulary
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15 Terms
point
an exact location in space
line
made of point with no thickness or width. Extends forever
plane
a flat surface that has no thickness and extends forever
collinear
points on the same line
coplanar
points that lie on the same plane
line segment
A part of a line between two endpoints.
ray
a part of a line that starts at an endpoint and extends forever in one direction
angle
two rays with a common endpoint
adjacent angles
Two angles that share a common side and have the same vertex
vertical angles
A pair of opposite congruent angles formed by intersecting lines
complementary
Two angles whose sum is 90 degrees
supplementary
two angles that add up to 180 degrees
linear pair
adjacent angles that are supplementary
perpendicular
Two lines that intersect to form right angles
bisector
A point, line or line segment that divides a segment or angle into two equal parts.
Note 
Flashcards (107)