Question

2-4).(-3-7) and (72)
((-5.-5), (1-4) and (1-2)
the centroid of a triangle is at (4,-2) and two of its vertices are 3.-2) and (2) then
Find the third vertex of the triangle​

Answer 1

Answer:

2

+y

=7

and,

(x

1

,y

1

)≡(4,8)

(x

2

,y

2

)≡(−2,6)

So,x

1

+x

2

=+2

Now,

x

1

+x

2

+x

3

=2×3

1+x

2

=6

x

3

=4

and,

3

y

1

+y

2

+y

3

=7

y

1

+y

2

+y

3

=21

y

1

+y

2

=8+6=14

y

3

=21−14

=4

So,(4,7)istherequiredpoints.