Term
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Definition
| if two angles are a linear pair, then they are supplementary |
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Term
| vertical angle conjecture |
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Definition
| if two angles are vertical they are congruent |
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Term
| corresponding angle conjecture |
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Definition
| if two parallel lines are cut by a transversal, then the corresponding angles are congruent |
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Term
| alternate interior angles conjecture |
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Definition
| if two parallel lines are cut by a transversal, then the alternate interior angles are congruent |
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Term
| alternate exterior angle conjecture |
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Definition
| if two parallel lines are cut by a transversal, then the alternate interior angles are congruent |
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Term
| converse of corresponding angle conjectur |
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Definition
| if corresponding angles are congruent when two angles are cut by a transversal, then the lines are parallel |
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Term
| coordinate midpoint conjecture |
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Definition
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Term
| slope of a line conjecture |
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Definition
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Term
| parallel slope conjecture |
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Definition
| in a coordinate plane, two distinct lines are parallel IFF the slopes are the same |
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Term
| perpendicular slope conjecture |
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Definition
| in a coordinate plane, two lines are perpendicular IFF the slopes are opposite and reciprical |
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Term
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Definition
| the sum of all the angles in a triangle is equal to 180 |
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Term
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Definition
| if two angles of one triangle are congruent to two angles of another triangle, then the triangles' third angle is congruent |
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Term
| isosceles triangle conjecture |
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Definition
| if a triangle is isosceles, then the base angles are congruent |
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Term
| converse of isosceles triangle conjecture |
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Definition
| if a triangle has two congruent angles, then the triangle is isosceles |
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Term
| equilateral triangle conjecture |
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Definition
| an equilateral triangle is equiangular |
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Term
| converse of equilateral triangle conjecture |
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Definition
| an equiangular triangle is equilateral |
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Term
| converse of equilateral triangle conjecture |
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Definition
| an equiangular triangle is equilateral |
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Term
| side-angle inequality conjecture |
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Definition
| in a triangle, the longest side is opposite the angle with the biggest measure, and the shortest side is opposite the smallest measure |
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Term
| triangle inequality conjecture |
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Definition
| the sum of the lengths of any two sides of a triangle are greater than the length of the opposite side |
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Term
| triangle exterior conjecture |
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Definition
| the measure of an exterior angle of a triangle is equal to the sum of the remote interior angles |
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