Sec. 1.2: Use Segments and Congruence Postulate/axiom: A postulate or axiom is a rule/fact that is accepted true without proof. Theorem: A theorem is a. - презентация

1 Sec. 1.2: Use Segments and Congruence Postulate/axiom: A postulate or axiom is a rule/fact that is accepted true without proof. Theorem: A theorem is a rule/fact only because it has been proven true.

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4 Example 1

5 Example 2 If S is between R and T, and RS = 2x + 10, ST = x – 4, and RT = 21, find RS and ST.

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7 Definition of Congruent Segments If Then and If Then

8 Example 3 If, AB = 2x – 5, and CD = 7x – 55, find AB.