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

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

Find the area of the triangle whose vertices are (3,8),(-4,2) and (5,1)

Find the area of a triangle whose vertices are (-4,1) , (5,-3) and (2,3) .

Consider the triangle ABC with vertices A(1,1,1), B(1,2,3) and C(2,3,1).Hence find the area of the triangle.

Consider the triangle ABC with vertices A(1,1,1), B(1,2,3) and C(2,3,1).Find vec(AB)timesvec(AC) .

Area of the triangle with vertices ( - 2,2), (1,5) and (6, - 1 ) is

Find the area of the triangle with vertices at (-2,-3),(3,2),(-1,-8) using determinants.

Find the area of the triangle with vertices at (2,7),(1,1),(10,8) using determinants.

Consider the triangle ABC with vertices A(1,1,1), B(1,2,3) and C(2,3,1) Find vec(AB) and vec(AC) .

In the triangle A B C with vertices A(2,3), B(4,-1) and C(1,2) . Find the equation and length of altitude from the vertex A .