Question

If the centroid of the triangle formed by (9. a) (b,-4) and (7,8) is (6,8) then (a, b) is​

Answer 1

Answer:

(9+b+7)/3=6

16+b=18

b=2

(a-4+8)/3=8

a+4=24

a=20

Answer 2

Answer:

(a, b) = 20 , 2

Step-by-step explanation:

•the centroid of the triangle = x+x2+x3/3 , y+y2+y3/3 •

then

9+b+7/3 = 6

a+8-4/3 = 8

on solving the problem we get

(a , b) is (20,2)