Correct Answer - A
Let h be the length of the altitude from A,
Distance from centroid to `BC = (h)/(3) = (122)/(sqrt(11^(2)+60^(2))) = (122)/(61) =2`
`:. h = 6` is height of `DeltaABC`
`:.` Area is `Delta = (h^(2))/(sqrt(3)) = 12 sqrt(3)`
Primeter, `P = 3 xx (2h)/(sqrt(3)) = 12 sqrt(3)`