1Geometry Lesson: Multiplication/Division Postulates Aim: Do Now: 1) Solve for x: 2) What value of x makes the statement below true? What are the Multiplication.

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1Geometry Lesson: Multiplication/Division Postulates Aim: Do Now: 1) Solve for x: 2) What value of x makes the statement below true? What are the Multiplication and Division postulates? A B CD 4 cm 24 cm 3) If M is the midpoint of AB, what value of x makes the statement below true? AB M

2Geometry Lesson: Multiplication/Division Postulates Multiplication Postulate: If equal quantities are multiplied by equal quantities, the products are equal. E K G R T S Given Multiplication Postulate Def. Midpoint Substitution Postulate Given: Prove:

3Geometry Lesson: Multiplication/Division Postulates Division Postulate: If equal quantities are divided by equal quantities, the quotients are equal. Given Division Postulate Def. Midpoint Substitution Postulate Special Case: Halves of equal quantities are equal. E K G R T S Given: Prove:

4Geometry Lesson: Multiplication/Division Postulates Ex 1: StatementsReasons 1) 2) 3) 4) 5) R L M C BA S D Given: Prove: Given Multiplication Postulate Substitution Postulate

5Geometry Lesson: Multiplication/Division Postulates Ex 2: StatementsReasons 1) 2) 3) 4) 5) Given E D A F B C Given: Prove: Given Division Postulate Def. Congruent Segments Substitution Postulate

6Geometry Lesson: Multiplication/Division Postulates Ex 3, 4: CA B D E 3) Given: Prove: 4) Given: Prove: R S YX T

7Geometry Lesson: Multiplication/Division Postulates Ex 5,6: 5) Given: Prove: C D A B H G F E C D A B E 6) Given: Prove: