'Ab prove' diaporamas de présentation

Proofs math 2

Proofs math 2. BE and CD intersect at A. Prove: <BAD = < CAE ( in other words prove the vertical angle theorem). Given that the lines are parallel and <2 = <6 Prove <4 = <6 (alternate interior < theorem). Given that the lines are parallel and <3 + <6 = 180

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5.5 Inequalities in One Triangle

5.5 Inequalities in One Triangle. Geometry Mrs. Spitz Fall, 2004. Objectives:. Use triangle measurements to decide which side is longest or which angle is largest. Use the Triangle Inequality. Assignment. pp. 298-300 #1-25, 34.

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5.5 Inequalities in One Triangle

5.5 Inequalities in One Triangle. Geometry Mrs. Spitz Fall, 2004. Objectives:. Use triangle measurements to decide which side is longest or which angle is largest. Use the Triangle Inequality. Assignment. pp. 298-300 #1-25, 34.

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Deductive Reasoning PROOFS

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EXAMPLE 1

Write a two-column proof for the situation in Example 4 on page 107 . m ? 1 = m ? 3. GIVEN:. m ? EBA = m ? DBC. PROVE:. REASONS. STATEMENT . 1. 1. m ? 1 = m ? 3. Given. 2. Angle Addition Postulate. 2. m ? EBA = m ? 3 + m ? 2. 3.

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