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Warm Up Determine whether each statement is true or false. If false, give a counterexample.

Warm Up Determine whether each statement is true or false. If false, give a counterexample.

Warm Up Determine whether each statement is true or false. If false, give a counterexample. 1. It two angles are complementary, then they are not congruent. 2. If two angles are congruent to the same angle, then they are congruent to each other. 3. Supplementary angles are congruent.

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484 views • 24 slides
2.5 Proving Angles Congruent

2.5 Proving Angles Congruent

2.5 Proving Angles Congruent. Chapter 2 Reasoning and Proof. 2.5 Proving Angles Congruent. Vertical Angles : Two angles whose sides form two pairs of opposite rays; form two pairs of congruent angles. 1. 2. 4. <1 and <3 are Vertical angles <2 and <4 are Vertical angles. 3.

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765 views • 12 slides
2.3-2.5 Review

2.3-2.5 Review

2.3-2.5 Review. Determine which property is being used:. If 2x = 8 then x = 4 If and then If ST = RQ then RQ = ST . Solve the following equation and justify each step. 3(2x + 7) = 27. Use the Law of Detachment to draw a conclusion if possible.

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186 views • 11 slides
More Angle Relationships

More Angle Relationships

More Angle Relationships. Deductive Reasoning. To deduce means to reason from known facts When you prove a theorem, you are using deductive reasoning using the existing structure to deduce new parts of the structure

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2.4 Congruent Supplements and Compliments

2.4 Congruent Supplements and Compliments

2.4 Congruent Supplements and Compliments. Theorem 4. If angles are supplementary to the same angle, then they are congruent Picture example: Must state: supplementary (twice, using one angle twice). Theorem 5. If angles are supplementary to congruent angles, then they are congruent.

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170 views • 7 slides

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