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What is the perimeter of the polygon formed when the points A(-6,6), B(9,-6) and C(9,2) and are graphed and connected with straight lines?

 Jun 24, 2021
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Distance  between  B  and C =    8

 

Distance  between   A  and B  =  sqt  [ (-6-9)^2  + (-6-6)^2  ]=  sqrt  [ 225  + 144 ]   =  sqrt [ 369 ] = 3sqrt (41)

 

Distance  between   A  and C  = sqrt  [ (-6-9)^2  +  (6 - 2)^2  ]=   sqrt  [ 225 + 16 ] = sqrt [ 241]

 

Perimeter =   8  +  3sqrt (41)   +  sqrt [241 ] ≈   42.7

 

 

cool cool cool

 Jun 24, 2021

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