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12 Cards in this Set
- Front
- Back
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The side opposite the vertex angle in an isosceles triangle
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Base
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Abbreviation for 'corresponding parts of congruent triangles are congruent"
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CPCTC
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A theorem that follows directly from another theorem and that can easily be proved from that theorem
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Corollary
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A triangle with at least two congruent sides
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Isosceles triangle
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The two congruent sides of an isosceles triangle
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Legs of an isosceles triangle
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The angle opposite the base of an isosceles triangle
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Vertex Angle
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The theorem or postulate that states: If the sides of one triangle are congruent to the sides of another triangle, then the two triangles are congruent
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SSS
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The theorem or postulate that states: If two sides and their included angle in one triangle are congruent to two sides and their included angle in another triangle, then the two triangles are congruent
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SAS
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The theorem or postulate that states: If two angles and their included side in one triangle are congruent two angle angles and their included side in another triangle, then the two triangles are congruent
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ASA
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The theorem or postulate that states: If two angles an a nonincluded side of one triangle are congruent to the corresponding angles and nonincluded side of another triangle, then the triangles are congruent
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AAS
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The theorem or postulate that states: If the hypotenuse and a leg of a right triangle are congruent to the hypotenuse and corresponding leg of another right triangle, then the two triangles are congruent
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HL
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The theorem or postulate that states: If two sides of a triangle are congruent, then the angles opposite those sides are congruent
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Isosceles Triangle Theorem
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