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avatar+91 

http://tinypic.com/view.php?pic=24xm2x3&s=9

 

If you click that link there should be pictures of the two triangles. Thanks.

 Nov 16, 2016
 #1
avatar+46 
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Its Not a link

 Nov 16, 2016
 #2
avatar+129845 
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Δ ABC   ~   Δ DEC  ....so...

 

Your first answer is good.....let's examine the rest....

 

B. tan < A  = cot <ECD

 

BC / AB  = CD / ED   ???      this isn't true.....

 

BC /AB = EC/ED

 

 

C.  sec < ACB   = csc D

 

AC / BC  = CD / EC ??   this is true.....

 

 

D.  sin < CAB = cos < DCE                  Δ ABC   ~   Δ DEC

 

   BC / AC = EC / CD  ???    this is true, as well

 

So....it looks as though  A C  and D   are correct

 

 

 

cool cool cool

 Nov 16, 2016

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