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# Theorems

### Definitions of theorems for test

TermDefinition
Congruent Supplements Theorem angles that supplement to same angle or congruent angles are congruent.
Congruent Compliments Theorem angles that compliment to same angle or to congruent angles are congruent
Vertical Angles Theorem if 2 angles are vertical, they are congruent
Theorem 2.9 when perpendicular lines intersect, they form 4 right angles
Theorem 2.10 all right angles are congruent
Theorem 2.11 perpendicular lines form congruent adjacent angles
Theorem 2.12 if 2 angles are congruent and supplementary, then each angle is a right angle
Theorem 2.13 if 2 congruent angles form a linear pair then they are right angles
Protractor Postulate given any angle, measure can be put into one-to-one with real numbers 0-180
Angle Addition Postulate if R is in the interior of <PQS, then m<PQR + m<RQS= m<PQS
Supplement Theorem 2 angles that form a linear pair are supplementary
Compliment Theorem non-common sides of 2 adjacent angles form right angle then they are complementary
Created by: edenbreslauer