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4.2 Notes SSS and SAS. What can you conclude? Look at the diagram. What can you conclude, if anything? How can you justify your conclusion(s).

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Presentation on theme: "4.2 Notes SSS and SAS. What can you conclude? Look at the diagram. What can you conclude, if anything? How can you justify your conclusion(s)."— Presentation transcript:

1 4.2 Notes SSS and SAS

2 What can you conclude? Look at the diagram. What can you conclude, if anything? How can you justify your conclusion(s).

3 Side-Side-Side Theorem (SSS) SSS: If the three sides of one triangle are congruent to the three sides of another triangle, then the two triangles are congruent. If _________________________, then____________________

4 Proof StatementsReason 1)1)Given 2)2) Given 3) 4)

5 Side-Angle-Side Postulate (SAS) SAS: If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the two triangles are congruent. If _________________________, then___________________

6 Proof From the info, can you prove (Use the markings as Givens)

7 Can you prove these triangles congruent? By what postulate?

8 Class work! P. 230 # 1-4, 6 Homework is on MathXL due Sun. at midnight


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