Find the area of the square formed by (0, -1), (2, 1) (0, 3) and (-2, 1) as vertices.

Find the area of the triangle vertices are (0, 0), (3, 0) and (0, 2)

Find the area of the triangle with vertices A(3,-1,2),B(1,-1,-3) and C(4,-3,1) .

The mid-point of the sides of a triangle are (1, 5, -1), (0, 4, -2) and (2, 3, 4). Find its vertices. Also find the centriod of the triangle.

The mid-points of the sides of a triangle are (5, 7, 11), (0, 8, 5) and (2, 3, -1). Find its vertices.

Find the area of a rhombus if its vertices are (3,0) , (4 , 5) , (-1, 4) and (-2, -1) taken in order.

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

The volume of a tetrahedron prism ABCA_1B_1C_1 is equal to 3. Find the coordinates of the vertex A_1 , if the coordinate of the base vertices of the prism are A(1, 0, 1), B(2, 0, 0) and C(0, 1, 0) .

The area of the quadrilateral ABCD, where A(0, 4, 1), B(2, 3, -1), C(4, 5, 0) and D(2, 6, 2), is equal to ........