Question

two vertices of a triangle are (3 -5) and (-7 4).if its centroid is (2 -1) find the third vertex
pls answer fast it is for my sister

Answer 1

Answer:

here is your answer

Step-by-step explanation:

Let the coordinates of third vertex be (x,y). Then,

x

+

3

−

7

3

=

2

x+3−73=2 and

y

−

5

+

4

3

=

−

1

y−5+43=−1

x

=

10

x=10 and

y

=

−

2

y=−2

Thus, the coordinates of the third vertex are

(

10

,

−

2

)

(10,−2).

hope it helps your sister.

mark it as brainlest answer.