If the orthocentre and the circucentre o...

If the orthocentre and the circucentre of a triangle are `(-3,5,1),(3,3,-1)` then the centroid is

(3, 3, 4)

`((3)/(2), (7)/(2), (9)/(2))`

`(9, 9, 12) `

`((9)/(2), (-3)/(2), (3)/(2))`

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Assertion (A) If (-1, 3, 2) and (5, 3, 2) are respectively the orthocentre and circumcentre of a triangle, then (3, 3, 2) is its centroid. Reason ( R ) Centroid of the triangle divides the line segment joining the orthocentre and the circumcentre in the ratio 1 : 2. Which one of the following is true ?

A : If the midpoints of the sides of a triangle are (1, 0), (0, 1), (1, 1) then the centroid is (2//3, 1) . R : Centroid of the triangle is same as centroid of triangle formed by their midpoints.

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