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Vocabulary test 4
| Question | Answer |
|---|---|
| Congruent Figures | Have the same Size and shape |
| Polygon | A closed three or more sided figure. |
| Congruent Polygons | Two or more polygons that have congruent, corresponding parts. |
| Third Angle Theorem | If two angles of one triangle are congruent to two angles of another triangle then the third Angle is congruent. |
| Side-Side-Side Postulate /SSS | If three sides of another triangle then the two triangles are congruent. |
| Side-Angle-Side Postulate/ SAS | If two sides and the included Angle of one triangle are congruent to two sides and the included Angle of another triangle then two triangles are congruent. |
| Angle-Side-Angle Postulate/ ASA | If two angles and the included side if one triangle are congruent to two angles and the included side if another triangle. |
| Angle-Angle-Side Postulate/AAS | If two angles and a non included side of one triangle are congruent to two angles and the corresponding non included side of another triangle. |
| CPCTC | Is an acronym for corresponding parts if congruent triangles are congruent. It means that once two triangles are proven to be congruent then the three parts of sides that corresponding must be congruent and the three pairs of angles that correspond |
| Isosceles Triangle theorem | If two sides of a triangle are congruent then the angles opposite the sides are congruent. |
| Converse of Isosceles Triangle Theorem | If two angles of a triangle are congruent then the sides opposite those angles are congruent. |
| Equilateral Triangle theorem | If a triangle is equilateral then the triangle us equilateral. |
| Converse of the Equilateral Triangle Theorem | If a triangle is equilateral then the triangle us equilateral |
| Isosceles Bisector Theorem | If a line bisects the vertex angle of an isosceles triangle then the line is also the perpendicular bisector of the base |
| Hypotenuse Leg Theorem | If the Hypotenuse and leg of a right triangle are congruent to the hypotenuse and leg of another right triangle then the two triangles are congruent. |
| Equilateral Triangle | Has three equal sides and they are also 60 degrees. |
| Isosceles Triangle | Its is a triangle that has at least two congruent sides |
| Isosceles Triangles | It has at least two congruent sides |