Proving Two Triangles are Congruent

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  • #1
bearn
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  • #2
topsquark
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What are the three conditions for two triangles to be congruent?

-Dan
 
  • #3
bearn
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What are the three conditions for two triangles to be congruent?

-Dan
SAS, SSS and ASA?
 
  • #4
topsquark
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SAS, SSS and ASA?
Good! Now, try for SSS on the first one. Is there any way you can show that BN = GI? For the second one, do the same trick but now you have a couple of supplementary angles to work with. Give it a try.

-Dan
 

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