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Questions  

If a triangle has its orthocentre at (1, 1) and circumcentre at 32,34 then the coordinates of the centroid of
the triangle are

a
43,-56
b
43,56
c
-43,56
d
-43,-56

detailed solution

Correct option is B

Since the centroid divides the line joining the orthocentre and circumcentre in the ratio 2 : 1 internally, therefore, if the centroid is (x, y), thenx=2.32+1.12+1=43  and  y=2.34+1.12+1=56∴ Coordinates of centroid are 43,56

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