Question

If (k,-1) is the centroid of a triangle having its vertices are (3,-5),(7,4) and (10,-k) then the value of k is ​

Answer 1

Step-by-step explanation:

centroid = (k, -1)=(x, y)

vertices:-

V1=(3,-5)=(x1,y1)

V2=(7,4)=(x2, y2)

V3=(10,-k) =(x3,y3)

k is the x coordinate of the centroid

.

. . x= x1+x2+x3

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3

k= 3+7+10/3

k=20/3

k=6.666666

k=6.7