Find the area of the triangle fonned by the points A (1,2,4), B(3,1,-2) and C(4,3,1) as its vartices (using vector).

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).

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 the triangle formed by the points P(-1.5, 3), Q(6,-2) and R(-3, 4).

Find the area of the triangle whose vertices are : A(1,2,3), B(2,-1,4) and C(4,5,-1)

Find the area of the triangle formed by the points A(1,1,1),B(1,2,3) and C(2,3,1) with reference to a rectangular system of axes.

Find the area of the triangle ABC whose vertices are : A(1,2,4), B(-2,1,2) and C(2,4,-3)

Find the angles of the triangle whose vertices are (0,-1,-2), B(3,1,4) and C(5,7,1).

Find the area of the triangle with vertices A(1,12), B(2,3,5), C(1,5,5)

Find the area of the triangle with vertices A (1, 1, 2), B (2, 3, 5) and C (1, 5, 5).