Term
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Definition
| Through any two points there exists exactly one line. |
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Term
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Definition
| A line contains at least two points. |
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Term
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Definition
| If two lines intersect, then their intersection is exactly one point. |
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Term
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Definition
| A statement that can be proved easily by a theorem or postulate. |
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Term
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Definition
| To divide into two congruent parts. |
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Term
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Definition
| If two lines are parallel to the same line, then they're parallel to the each other. |
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Term
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Definition
| A proof in paragraph form. |
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Term
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Definition
| Part of a line with endpoints and all points between the two endpoints. |
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Term
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Definition
| Part of a line with endpoints and all points between the two endpoints. |
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Term
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Definition
| The negative of a statement |
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Term
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Definition
| An unproven statement based on observations. |
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Term
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Definition
| An example that proves a statement false. |
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Term
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Definition
| The formula that tells the distance between two points. |
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Term
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Definition
| The starting point in a raw which all points on the line extend from. |
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Term
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Definition
| Uses known words to describe a new word. |
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Term
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Definition
| A point has no dimension and is represented by a small dot. |
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Term
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Definition
| A line extends in one dimension. |
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Term
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Definition
| a plane extends in two dimensions. |
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Term
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Definition
| points that lie on the same line. |
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Term
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Definition
| points which lie on the same plane. |
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Term
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Definition
| to have one or more points in common |
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Term
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Definition
| the set of points that two or more geometric figures have in common. |
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Term
| Segment addition postulate |
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Definition
| If B is between AC, then AB + BC = AC |
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Term
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Definition
| Segments with the same length. |
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Term
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Definition
| Consists of two different rays that have the same initial point. |
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Term
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Definition
| Two rays which make up the angle |
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Term
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Definition
| The initial point of the two rays which make up the angle |
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Term
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Definition
| Angles with the same measure |
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Term
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Definition
| all points between the points that lie on each side of the angle |
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Term
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Definition
| All points not in the interior |
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Term
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Definition
| An able with a measure between 0 and 90 |
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Term
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Definition
| An angle with the measure of 90 |
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Term
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Definition
| An angle with a measure between 90 and 180 |
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Term
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Definition
| An angle with a measure of 180 |
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Term
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Definition
| Two angles with a common vertex and side but no interior points. |
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Term
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Definition
| The point that divides or bisects a segment into two congruent segments |
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Term
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Definition
| a segment, ray, line, or plane that intersects a segment at its midpoint |
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Term
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Definition
| A construction tool used to draw segments. |
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Term
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Definition
| A geometric drawing that uses a limited set of tools, usually a compass and straightedge. |
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Term
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Definition
| the formula used to determine the midpoint |
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Term
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Definition
| two angles whose sides form two pairs of opposite rays |
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Term
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Definition
| two adjacent angles whose sides form two pairs of opposite rays. |
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Term
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Definition
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Term
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Definition
| The sum of an angle and it's complement is 90 |
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Term
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Definition
| Two angels whose measure add up to 180 |
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Term
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Definition
| An angle and its supplement add up to 180 |
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Term
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Definition
| A triangle with three congruent sides |
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Term
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Definition
| a triangle with at least two congruent sides |
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Term
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Definition
| a triangle with no congruent sides |
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Term
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Definition
| a triangle with three congruent angles |
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Term
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Definition
| a triangle with one right angle |
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Term
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Definition
| a triangle with three acute angles |
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Term
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Definition
| a triangle with one obtuse angle |
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Term
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Definition
| each of the three points joining the sides of a triangle |
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Term
| adjacent sides of a triangle |
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Definition
| two sides of a triangle with a common vertex |
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Term
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Definition
| in a right triangle, the side opposite the right triangle |
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Term
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Definition
| the sum of the measures of the interior angles of a triangle is 180 |
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Term
| corollary to the triangle sum theorem |
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Definition
| the acute angles of a right triangle are complementary |
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Term
| Reflexive property of equality |
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Definition
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Term
| Symmetric property of equality |
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Definition
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Term
| Transitive property of equality |
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Definition
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Term
| reflexive property of congruence |
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Definition
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Term
| symmetric property of congruence |
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Definition
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Term
| transitive property of congruence |
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Definition
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Term
| reflexive property of angle congruence |
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Definition
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Term
| symmetric property of angle congruence |
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Definition
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Term
| transitive property of angle congruence |
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Definition
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Term
| reflexive property of triangle congruence |
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Definition
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Term
| symmetric property of triangle congruence |
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Definition
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Term
| transitive property of triangle congruence |
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Definition
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Term
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Definition
| a rule accepted without proof |
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Term
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Definition
| a rule accepted without proof |
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Term
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Definition
| if two sides of a triangle are congruent, then the angles opposite them are congruent |
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Term
| converse of base angles theorem |
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Definition
| if two angles of a triangle are congruent, then the sides opposite them are congruent |
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Term
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Definition
| if a triangle is equilateral, it is also equiangular |
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Term
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Definition
| if a triangle is equiangular, then it is also equilateral |
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Term
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Definition
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Term
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Definition
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Term
| right angles congruence theorem |
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Definition
| all right angles are congruent |
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Term
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Definition
| if two angles form a linear pair then are are supplementary |
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Term
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Definition
| vertical angles are congruent |
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Term
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Definition
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Term
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Definition
| a line that intersects two or more coplanar lines at diff. points |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| two figures with the exact same size and shape |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| the initial point of the two rays |
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Term
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Definition
| the distance between two points on a segment |
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Term
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Definition
| the angles which make up the base of an isosceles triangle |
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Term
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Definition
| if three sides of one triangle are congruent to three sides of a second triangle, then the two triangles are congruent. |
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Term
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Definition
| if two sides and the included angle of one triangle are congruent to two sides and the included angle of a second triangle, then the two triangles are congruent. |
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Term
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Definition
| If two angles and the included side of one triangle are congruent to two sides and the included side of a second triangle, the two triangles are congruent. |
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Term
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Definition
| If two angles and a non-included side of one triangle are congruent to two angles and the corresponding non-included side of a second triangle, then the two triangles are congruent. |
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