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**Chapters 1 & 2 Theorem & Postulate Review Answers**

Geometry Chapters 1 & 2 Theorem & Postulate Review Answers

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**1. If two angles are right angles, then _________________________________.**

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**1. If two angles are right angles, then they are congruent.**

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**2. If two angles are straight angles, then _______________________________.**

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**2. If two angles are straight angles, then they are congruent.**

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**3. If a conditional statement is true, then the _____________________ is also true.**

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**3. If a conditional statement is true, then the contrapositive is also true.**

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**4. If angles are supplementary to the same angle, then ________ _________ _________________.**

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**4. If angles are supplementary to the same angle, then they are congruent.**

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**5. If angles are supplementary to congruent angles, then ________ ________ __________________.**

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**5. If angles are supplementary to congruent angles, then they are congruent.**

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**6. If angles are complementary to the same angle, then ________ _________ _________________.**

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**6. If angles are complementary to the same angle, then they are congruent.**

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**7. If angles are complementary to congruent angles, then ________ ________ __________________.**

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**7. If angles are complementary to congruent angles, then they are congruent.**

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**8. If a segment is added to two congruent segments, then the sums are __________________.**

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**8. If a segment is added to two congruent segments, then the sums are equal.**

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**9. If an angle is added to two congruent angles, then the sums are __________________.**

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**9. If an angle is added to two congruent angles, then the sums are equal.**

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**10. If congruent segments are added to congruent segments, the sums are __________________.**

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**10. If congruent segments are added to congruent segments, the sums are equal.**

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**11. If congruent angles are added to congruent angles, the sums are __________________.**

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**11. If congruent angles are added to congruent angles, the sums are equal.**

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12. If a segment (or angle) is subtracted from congruent segments (or angles), the differences are ______________.

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12. If a segment (or angle) is subtracted from congruent segments (or angles), the differences are equal.

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13. If congruent segments (or angles) are subtracted from congruent segments (or angles), the differences are ______________.

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13. If congruent segments (or angles) are subtracted from congruent segments (or angles), the differences are equal.

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**14. If segments (or angles) are congruent, their like multiples are __________________.**

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**14. If segments (or angles) are congruent, their like multiples are equal.**

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**15. If segments (or angles) are congruent, their like divisions are __________________.**

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**15. If segments (or angles) are congruent, their like divisions are equal.**

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16. If angles (or segments) are congruent to the same angle (or segment), they are ______________ to each other.

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16. If angles (or segments) are congruent to the same angle (or segment), they are congruent to each other.

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17. If angles (or segments) are congruent to congruent angles (or segments), they are___________________ to each other.

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17. If angles (or segments) are congruent to congruent angles (or segments), they are congruent to each other.

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**18. Vertical angles are __________________.**

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**18. Vertical angles are congruent.**

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