This is the "4.5: Using Congruent Triangles" page of the "Geometry Chapter 4" guide.
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Geometry Chapter 4   Tags: geometry, mahlman, math  

Last Updated: Jan 19, 2011 URL: Print Guide RSS Updates

4.5: Using Congruent Triangles Print Page

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Given: A is the midpoint of MT          
            A is the midpoint of SR  
Prove: MS TR



1. A is the midpoint of MT

    A is the midpoint of SR

1. Given
2. MA @ TA 2. Definition of Midpoint
3. SA @ RA 3. Definition of Midpoint
4. MAS @ TAR 4. Vertical Angles Theorem
5. D MAS @ D TAR  5. SAS Congruence Postulate
6. <M @ <T 6. CPCTC
7. MS II TR 7. AIA Converse

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