Geomentry
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15 Terms
Acute Angle
An angle whose measure is between 0° and 90°.
Obtuse Angle
An angle whose measure is between 90° and 180°.
Right Angle
An angle whose measure is 90°.
Parallel Lines
Lines in the same plane that never intersect.
Transversal
A line that intersects two or more lines at distinct points.
Line Segment
Part of a line that consists of two endpoints and all points between them.
Midpoint
The point that divides a line segment into two congruent segments.
Angle
The space between two rays that share a common endpoint.
Adjacent Angles
Two angles that share a common vertex and side.
Vertical Angles
Congruent angles that are across from each other on intersecting lines.
Complementary
Two angles with measures that have a sum of 90°.
Supplementary
Two angles with measures that have a sum of 180°.
Linear Pair
Adjacent angles that are supplementary.
Perpendicular Lines
Two lines that intersect at a 90° angle.
Bisector
A line, ray, or segment that divides an angle or segment into two equal parts.