Three lines 4x-7y+10=0,  x+y=5  ,  7x+4y=15 from thesides of a triangle . then the point (1,2) is its
1) centroid
2) incentre
​3)orthocentre
4) non of these 


plz explain 
 

Dear Student ,
 
Please find below the solution to the asked query :




Hence 1,2 is the orthocentre .So , Correct option is 3 Orthocentre .
 
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