Find the orthocentre of `Delta A B C` with vertices `A(1,0),B(-2,1),` and `C(5,2)`

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

The orthocentre of the triangle whose vertices are (5,-2), (-1, 2) and (1,4) is

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

If G is the centroid of triangle with vertices A(a,0),B(-1,0) and C(b,c) then (AB^(2)+BC^(2)+CA^(2))/(GA^(2)+GB^(2)+GC^(2))=

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

The orthocentre of the triangle with vertices (0,0),(3,4), and (4,0) is (a) (3,5/4) (b) (3,12) (c) (3,3/4) (d) (3,9)

If the origin is the centroid of the triangle PQR with vertices P(2a,2,6),Q(-4,3b,-10) and R(8,14,2c) , then find the values of a, b and c.

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

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

Find the coordinates of the circumcenter of the triangle whose vertices are (A(5,-1),B(-1,5), and C(6,6)dot Find its radius also.