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thanks for all the help :)

 Dec 11, 2017
 #1
avatar+102422 
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A  =  (  [ 2a + 0 ] / 2,   [2b + 0 ] / 2 )  =  ( a, b )

 

C  =  ( [ 2c + 2c ] / 2 , [ 2d + 0 ] / 2 )   =     (2c, d)

 

Slope AD    =    [ b - 0 ] / [ a - c]   =  b / [ a - c]

 

Slope BC  =  [ b + d - d ] /  [ a + c - 2c ]  =  b / [ a - c ]

 

 

cool cool cool

 Dec 11, 2017

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