Find the area of a triangle having the points`A(1, 1, 1)`, `B(1, 2, 3)`and `C(2, 3, 1)`as its vertices.

Find the area of atriangle having the points A(1,1,1), B (1,2,3) and C(2,3,1) as its vertices.

Find the area of atriangle having the points A(1,1,1), B (1,2,3) and C(2,3,1) as its vertices.

Find the area of atriangle having the points A(1,1,1), B (1,2,3) and C(2,3,1) as its vertices.

Find the area of the triangle having the points A(1,1,1), B(1,2,3) and C(2,3,1) as vertices.

Find the area of a triangle having the points A(1,1,1) B(1,2,3) and as its vertices.

Find the area of the triangle having point A(1,1,1)B(1,2,3) and C(2,3,1) as its vertices.

Find the area of a triangle having the points A(1,0,0),B(0,1,0) and C(0,0,1) as its vertices.

Find the area of the triangle formed by the points A (1, 1, 2), B (2, 3, 5) and C (1, 5, 5) as its vertices (using vector).