find th third vertex of triangle whose centroid is origin and two vertices are (2,4,6) and (0,-2,5)

Explanation

Let thrid vertex of `DeltaABC` i.e.. Is A ( x,y,z)
given that, the coordinate of centroid G are ( 0,0,0).
`0=(x+2+0)/3 Rightarrowx=-2`
`0=(y+4-2)/3Rightarrowy=-2`
` 0= (z+6-5)/2 Rightarrowz=-1`
Hence, the third vertex of triangle is (-2,-2,-1).