Question

The orthocentre of the triangle OAB, where O is the origin,
A(6,0) and B(3,3√3)
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Answer 1

Answer: The orthocentre means the centroid in other language

X=0+6+3/3 =3

Y=0+0+3√3/3 = √3

Therefore the orthocentre of triangle oab is (3,√3)