Vertices of a triangle are given by hati+3hatj+2hatk , 2hati-hatj+hatk and -hati+2hatj+3hatk then area of triangle is (in units)

Vertices of a triangle are given by hati+3hatj+2hatk , 2hati-hatj+hatk

1.	Vertices of a triangle are given by hati+3hatj+2hatk , 2hati-hatj+hatk and -hati+2hatj+3hatk then area of triangle is (in units)
Answer» `sqrt(107)//2` `sqrt(107)//6` `sqrt((107)/(2))` `sqrt(207)//3` Answer :A