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1.
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Corresponding Parts!
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Two triangles are congruent if and only if thier vertices can be matched up so that
corresponding parts of the triangles are congruent.
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2.
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SSS Postulate!
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SSS postulate(side-side-side)-If three sides of one triangle are congruent to all three of another then the triangles are congruent.
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3.
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SAS Postulate!
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SAS postulate( side-angle-side)- If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the triangles are congruent.
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4.
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ASA Postulate!
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ASA postulate(angle-side-angle)-If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent.
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5.
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Isosceles Triangle Theorm!
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If two sdies of a triangle are congruent then the angles opposite those sides are congruent.
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6.
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Isosceles Triangle Theorm#2
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If two angles are congruent then the sides oppostie those angles are congruent
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7.
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Isosceles Classification!
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Isosceles triangles have to have at least two sides congruent
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8.
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AAS Theorm
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AAS Theorm( angle-angle-side)-If two angles and a non-included side of one triangle are congruent to the corresponding parts of another triangle the the triangles are congruent
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9.
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HL Theorm
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HL Theorm(hypotenuse leg)-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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