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

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