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pallavi pradeep bhardwaj Grade: 12
        

If G and G` be hte centroid of the triangle ABC and triangle A`B`C` respectively then AA`+BB`+CC`=

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear palllavi


let O is the origin


then OG  =( OA +OB +OC)/3


 


and OG' = (OA' + OB ' OC')/3


 


subtract


  OG -OG'=  ( OA +OB +OC)/3 - (OA' + OB ' OC')/3   


 GG'  = (AA' + BB' + CC')/3


AA`+BB`+CC`= 3GG'





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Badiuddin

7 years ago
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