Term
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Definition
| A quantity is congruent (equal) to itself. a = a |
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Definition
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Definition
| If a = b and b = c, then a = c. |
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Definition
| If equal quantities are added to equal quantities, the sums are equal. |
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Definition
| If equal quantities are subtracted from equal quantities, the differences are equal. |
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Definition
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| Congruent Complement Theorem |
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Definition
| If angles are complementary to the same angle or to congruent angles, then they are congruent. |
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| Congruent Supplement Theorem |
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Definition
| If angles are supplementary to the same angle or to congruent angles, then they are congruent |
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Term
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Definition
| If an angle is a Right Angle, then its measure is 90° |
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Term
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Definition
| If a ray divides an angle into two congruent angles, then it bisects the angle |
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Term
| Segment Addition Postulate |
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Definition
| If B is between A and C, then AB + BC = AC |
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