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Definition
| If two angles are right angles, then they are congruent. |
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Term
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Definition
| If two angles are straight angles, then they are congruent. |
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Term
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Definition
| If a conditional statement is true, then the contraception of the statement is also true. (if p, then q <--> If ~ q, then ~p.) |
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Term
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Definition
| If angles are supplementary to the same angle, then they are congruent. |
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Term
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Definition
| If angles are supplementary to congruent angles, then they are congruent. |
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Term
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Definition
| If angles are complementary to the same angle, then they are congruent. |
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Term
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Definition
| If angles are complementary to congruent angles, then they are congruent. |
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Term
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Definition
| If a segment is added to two congruent segments, the sums are congruent. (Addition Property) |
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Term
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Definition
| If an angle is added to two congruent angles, the sums are congruent. (Addition Property) |
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Term
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Definition
| If congruent segments are added to congruent segments, the sums are congruent (Addition Property) |
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