Term
SSS Postulate (Side-Side-Side)
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Definition
| If three side of one triangle are congruent to three sides of another triangle, then the triangles are congruent. |
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Term
SAS Postulate (Side-Angle-Side)
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Definition
| If two side and the included angle of one triangle are congruent to two sides and the included of another triangle, then the triangles are congruent. |
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Term
ASA Postulate (Angle-Side-Angle)
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Definition
| If two angles and the included side of one triangle are congruent to two angles angles and the included side of another triangle, then the triangle are congruent. |
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Term
The Isosceles Triangle Theorem
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Definition
| If two sides of a triangle are congruent, then the angles opposite those sides are congruent. |
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Term
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Definition
| An equilateral triangle is also equiangular. |
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Term
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Definition
| An equailateral triangle has three 60 degree angles. |
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Term
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Definition
| The bisector of the vertex angle of an isosceles triangle is perpendicular to the base at its line. |
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Term
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Definition
| If two angles of a triangle are congruent, then the side opposite those angles are congruent. |
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Term
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Definition
| An equianular triangle is also equilateral. |
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Term
AAS Theorem (Angle-Angle-Side)
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Definition
| If two angles and a non-included side of one triangle are congruent to the corresponding pars of another triangle, then the triangles are congruent. |
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Term
HL Theorem (Hypotenuse Leg)
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Definition
| If the hypotenuse and a leg of one right triangle are congruent to the corresponding parts of another right triangle, then the triangles are congruent. |
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Term
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Definition
| If a point lies on the perpendicular bisector of a segment, then the point is equidistant from the endpoints of the segments. |
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Term
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Definition
| If a point is equidistant from the endpoints of a segment, then the point lies on the perpendicular bisector of the segment. |
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Term
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Definition
| If a point lies on the bisector of an angle, then the point is equidistant from then sides of the angle. |
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Term
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Definition
| If a point is equidistant from the sides of an angle, then the point lies on the bisector of the angle. |
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