2-6: Planning a Proof. Proofs consist of 5 parts 1.Statement of the theorem 2.A diagram that illustrates the given info 3.A list, in terms of the figure.

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Presentation transcript:

2-6: Planning a Proof

Proofs consist of 5 parts 1.Statement of the theorem 2.A diagram that illustrates the given info 3.A list, in terms of the figure of what is given 4.A list, in terms of the figure of what is to be proved 5.A series of statements and reasons that lead from the given info to the statement that is to be proved

Come up with a plan in your head, then formalize it

Think of how to prove this, and be prepared to explain it to the class: Given: < 2 and < 3 are supplementary Prove: m < 1 = m < 3

Theorem 2-7: If 2 angles are supplements of congruent angles (or of the same angle), then the 2 angles are congruent

Theorem 2-8: If 2 angles are complements of congruent angles, (or of the same angle), then the 2 angles are congruent

Pop Quiz Time.

Classwork Pg 62: 1-8

Homework Pg 63: 1-17 odd, 19 and 20 Study: Quiz