a triangle ABC with vertex A(1,2) and D(3,10) is the mid point of BC then find centroid of triangle ABC
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a triangle ABC with vertex A(1,2) and D(3,10) is the mid point of BC then find centroid of triangle ABC
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Answer:
Let the coordinates of D be (p,q,r).
Since, the centroid divides the line joining AD in the ratio 2:1, the coordinates of centroid should be,
(
3
2p−1
,
3
2q+1
,
3
2r−4
)
Comparing it with the coordinates of the centroid given, D(2,1,−1).