The othocenter of `DeltaABC` with vertices `B(1,-2)` and `C(-2,0)` is `H(3,-1)`.Find the vertex A.

If G(-2, 1) is the centroid of a DeltaABC and two of its vertices are A(1, -6) and B(-5, 2), find the third vertex of the triangle.

Find the centroid of DeltaABC whose vertices are A (0,-1) , B (-2,5) and C (2,8) .

Find the centroid of DeltaABC whose vertices are A (0,-1) , B (-2,5) and C (2,8) .

For a DeltaABC the vertices are A(1, 3), B(0, 0) and C(k, 0) . area of △ABC is 3. Find the value of k.

Find the measure of the angle A of the DeltaABC with vertices A(2,3) , B(-2,2) and C(0,2)

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 .

The vertices of a parallelogram ABCD are A(3,-1,2), B(1,2,-4) and C(-1,1,2). Find the 4th vertex.

Using vectors, find the area of the DeltaABC with vertices A(1,2,3),B(2,-1,4) and C(4,5,-1) .

Find the third vertex of DeltaABC , if two of its vertices are A (-2,3) , B(4,5) and its C(1,2) .