Ch 5.6.  We will look at the properties of the Hinge Theorem.  Learn a new kind of proof.

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Presentation transcript:

Ch 5.6

 We will look at the properties of the Hinge Theorem.  Learn a new kind of proof.

ACB

 In an indirect, you assume that whatever you want to prove is false and then find a counterexample. Yeah, we are learning another kind of proof.

 Prove: All even numbers are divisible by 2.  Prove: All squares are quadrilaterals.  Prove: All perpendicular bisectors do not intersect inside a triangle.

 Given: x is a perfect square.  Prove: The square root of x is a whole number.