Term
| Supplementary angles are congruent |
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Definition
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Term
| two rays with a common endpoint are opposite rays |
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Definition
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Term
| if m<1 is greater than m<2 then the measure of the complement of <1 is grater than the measure of the complement of <2 |
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Definition
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Term
| the supplement of an acute angle is obtuse |
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Definition
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Term
| vertical angles are complementary |
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Definition
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Term
| definitions are reversible |
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Definition
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Term
| the contrapositive of a true statement is a false statement |
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Definition
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Term
| if CP=PR then C,P,R are collinear |
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Definition
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Term
| if 2 lines dont intersect, then they are parallel |
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Definition
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Term
| if 2 lines are perpindicular to the same line, then they are parallel |
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Definition
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Term
| if 2 planes intersect then their intersection is exactly one line |
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Definition
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Term
| two lines that are parallel to a third line are parallel to each other |
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Definition
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Term
| two lines perpendicular to the same plane are perpendicular to each other |
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Definition
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Term
| a line in the plane of the ceiling and a line in the plane of the floor are parallel |
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Definition
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Term
| If the endpoints of a segment lie in a plane, then all the points of the segment lie in the plane |
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Definition
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Term
| two planes perpendicular to the same plane are perpendicular to each other |
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Definition
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Term
| three colllinear points determine a plane |
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Definition
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Term
| if 2 lines are skew to a third line, then they are skew to each other |
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Definition
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Term
| the diagnols of a rectangle are perpendicular |
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Definition
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Term
| consecutive sides of a rhombus are congruent |
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Definition
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Term
| both pairs of opposite angles of a trapezoid are congruent |
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Definition
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Term
| a rectangle has at least one right angle |
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Definition
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Term
| the diagnols of a parallelogram are congruent |
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Definition
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Term
| the diagnols of a trapezoid are congruent |
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Definition
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Term
| a diagnal of a square bisects opposite angles |
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Definition
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Term
| the diagnals of a trapazoid bisect each other |
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Definition
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Term
| consecutive angles of a rhombus are supp. and congruent |
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Definition
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Term
| one pair of opposite angles in a kite are congruent |
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Definition
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Term
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Definition
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Term
| in an isosceles trapezois, the basrs are parallel |
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Definition
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Term
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Definition
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Term
| if a figure is a quadrilateral then it is a parallelogram |
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Definition
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Term
| all squares are rectangles |
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Definition
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Term
| two lines perpendicular to the same line are parallel |
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Definition
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Term
| 2 planes perpendicular to the same plane are perpendicular |
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Definition
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Term
| a line in one of 2 parallel planes is parallel to a line in the other |
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Definition
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Term
| if 2 lines dont intersect, then they are parallel |
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Definition
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Term
| two lines that have no points in common are parallel |
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Definition
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Term
| if 2 parallel lines are cut by a transveral, alternate interior arngles are congruent |
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Definition
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Term
| if lines m & n intersect at point x and line m is parallel to line k, then n is parallel to k |
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Definition
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Term
| in an obtuse triangle there is one angle whose measure is greater that 90 |
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Definition
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Term
| scalene triangle is an acute triangle |
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Definition
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Term
| acute triangle is a right triangle |
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Definition
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Term
| an equilateral polygon is a regular polygon |
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Definition
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