Geometry Unit 1 Vocab
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15 Terms
Acute Angle
An angle that measures less than 90 degrees.
Obtuse Angle
An angle that measures greater than 90 degrees and less than 180 degrees.
Right Angle
An angle that measures exactly 90 degrees.
Parallel Lines
Lines in a plane that never intersect and are always the same distance apart.
Transversal
A line that intersects two or more lines in a plane at distinct points.
Line segment
Part of a line that consists of two endpoints and all end points between them
Midpoint
The point on a line segment that divides it into two equal parts, equidistant from both endpoints.
Angle
The space between two rays that share a common endpoint
Adjacent angles
are two angles that share a common vertex and a side but do not overlap.
Vertical angles
Congruent angles that are across from each other on intersecting lines
Complementary
Two angles that have the sum of 90 degrees
Supplementary
Two angles that have a sum of 180
Linear pair
Adjacent angles that are supplementary
Perpendicular lines
Two lines that intersect a 90 degree angle
Bisector
A line, ray, or segment that divides and Angle or segment into two equal parts
Note 
Flashcards (57)