Question

a triangle ABC with vertex A(1,2) and D(3,10) is the mid point of BC then find centroid of triangle ABC​

Answer 1

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).