Review of geometry vocabulary found in Chapter 2 of Heath Geometry. Match the word to the correct definition.

You are watching: Two angles whose sides are opposite rays are called

The point that divides a segment into two congruent segments.
Acute angleAn angle that measures greater than 0 but less than 90 degrees.
Vertical anglesTwo angles whose sides form two pairs of opposite rays.
Supplementary anglesTwo angles whose sum is 180 degrees.
Linear pair postulateIf two angles form a linear pair, then they are supplementary and their sum is 180 degrees.
Perpendicular linesTwo lines that intersect to form a right angle.
Segment bisectorSegment, ray, line, or plane that intersects a segment at its midpoint.
Congruent anglesTwo angles that have the same measure.
Complementary anglesTwo angles whose sum is 90 degrees.
Adjacent anglesTwo angles that share a vertex and common side but have no interior points in common.
Linear pairTwo adjacent angles whose noncommon sides are opposite rays.
Obtuse angleAn angle that measures more than 90 degrees and less than 180.
Right angleAn gngle that measures 90 degrees.
Angle bisectorA ray that divides an angle into two congruent angles.
TheoremA statement that must be proved to be true.
PostulateA statement that is accepted as true without proof.
CollinearPoints, lines or segments that are on the same line.
CoplanarPoints, lines , or planes in the same plane
Converseq implies p
InverseNot p implies not q
ContrapositiveNot q implies not p
Congruent Complements TheroemIf two angles are complementary to the same angle, then they are congruent.
Congruent Supplements TheoremIf two angles are supplementary to the same angle, then they are congruent.

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Vertical Angles TheroemIf two angles are vertical angles, then they are congruent.