Question

if G (a, 2,-1) is centroid of triangle
with vertices P (1,3,2), Q(3, b-4) R (5,1,c)
then find
a,b,c
​

Answer 1

Answer:

a=3

b=2

c= -1

Explanation:

G(a,2,-1)=(1+3+5/3 , 3+b+1/3 , 2-4+c/3)

G(a,2,-1)=(9/3 , b+4/3 , c-2/3)

G(a,2,-1)=(3 , b+4/3 , c-2/3)

a=3

2=b+4/3

6=b+4

6-4=b

2=b

-1=c-2/3

-3=c-2

-3+2=c

-1=c