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HEY REMEMBER ME!!!!!!. DEFINITIONS, POSTULATES, AND PROPERTIES. Review. SEGMENT ADDITION POSTULATE. If B is between A and C then AB + BC = AC. ANGLE ADDITION POSTULATE. If B is in the interior of ACD then : m ACB + m BCD = m ACD. DEFINITION OF CONGRUENCE.
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HEY REMEMBER ME!!!!!! DEFINITIONS, POSTULATES, AND PROPERTIES Review
SEGMENT ADDITION POSTULATE If B is between A and C then AB + BC = AC
ANGLE ADDITION POSTULATE If B is in the interior of ACD then: m ACB + m BCD = m ACD
DEFINITION OF CONGRUENCE Ifthen AB = CD
DEFINITION OF AN ACUTE ANGLE Angle whose measure is between 0 and 90 degrees
DEFINITION OF AN OBTUSE ANGLE Angle whose measure is between 90 and 180 degrees
DEFINITION OF A RIGHT ANGLE Angle whose measure is 90 degrees
DEFINITION OF A STRAIGHT ANGLE Angle whose measure is 180 degrees
DEFINITION OF A MIDPOINT Point that divides a segment into two congruent parts
DEFINITION OF ANANGLE BISECTOR Ray that divides an angle into two congruent adjacent angles
DEFINITION OF COMPLEMENTARY ANGLES 2 angles whose sum is 90
DEFINITION OF SUPPLEMENTARY ANGLES 2 angles whose sum is 180
DEFINITION OF PERPENDICULAR LINES If 2 lines are perpendicular then they form RIGHT angles.
LINEAR PAIR POSTULATE If two angles form a linear pair, then they are supplementary.
VERTICAL ANGLES THEOREM Vertical angles are congruent.
RIGHT ANGLE CONGRUENCETHEOREM All right angles are congruent
Congruent supplements theorem If two angles are supplementary to the same angle (or to congruent angles) then they are congruent.
CONGRUENT COMPLEMENTS THEOREM If two angles are complementary to the same angle (or to congruent angles) then they are congruent.