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14 Cards in this Set
- Front
- Back
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definition of a segment bisector
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segment bisector intersects a segment at its midpoint
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reverse definition of a segment bisector
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any line that intersects a segment at its midpoint is the segment bisector
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definition of a midpoint
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midpoint devides a segment into 2 congruent segments
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reverse definition of a midpoint
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any point that divides a segment into 2 congruent segments is the midpoint
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definition of an angle bisector
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angle bisector divides an angle into 2 congruent angles
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reverse definition of an angle bisector
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any ray that divides an angle into 2 congruent angles is the angle bisector
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definition of perpendicular lines
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perpendicular lines intersect to form right angles
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reverse definition of perpendicular lines
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any two lines that intersect to form right angles are right angles
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definition of complementary angles
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complementary angles are 2 angles that unite to form a right angle
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reverse definition of complementary angles
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any two angles that unite to form a right angle are complementray
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definition of supplementary angles
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supplementary angles are 2 angles that unite to form a straight line
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reverse definition of supplementary angles
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any 2 angles that unite to form a straight line are supplementary
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Addition property
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if x=7, then x + 3 = 10
if AB =3 and BC=5, then AB + BC = 3 + 5 |
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subtraction property
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if x = 10, then x-3=7
if the measure of angle A + 20 = 60, then the measure of angle A is 40 |
