Question

if (1,4) is the centroid of triangle whose vertices are (a,3), (4,b) and (-3,2) then a= ________
[2,4,6]
plz answer step by step​

Answer 1

Answer:

Centroid of a triangle with vertices

(x

1

,y

1

);(x

2

,y

2

) and (x

3

,y

3

) is calculated by the formula (

3

x

1

+x

2

+x

3

,

3

y

1

+y

2

+y

3

)

So,

centroid =(

3

4+3+5

,

3

−6−2+2

) =(4,−2)