Term
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Definition
| The sum of the measures of the interior angles is 180 |
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Term
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Definition
| The measure of an exterior angle of a triangle is equal to the sum of the measures of the two nonadjacent interior angles |
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| Corollary to triangle sum theorem |
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Definition
| The acute angles of a right triangle are complementary |
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Term
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Definition
| If two angles of one triangle are congruent to the corresponding angles of another triangle,then the third angles are also congruent |
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Definition
| If two sides of a triangle are congruent then the angles opposite them are congruent |
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Definition
| If two sides of a triangle are congruent then the angles opposite them are congruent |
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| corollary to the base angles theorem |
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Definition
| If two angles of a triangle are,then the sides opposite to them are congruent |
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Term
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Definition
| If a triangle is equilateral then 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
| If the hypotenuse and a leg of a right triangle are to a second triangle's hyptotenuse and a leg then the triangle are congruent |
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