If the vertices P, Q and R of a triangle have coordinates `(2, 3, 5), (-1, 3, 2)` and `(3,5,-2)` respectively, then find the angles of the triangle PQR.

If the vertices P,Q and R of a triangle have cooddinates (2,3,5),(-1,3,2) and (3,5,-2) respectively,then find the angles of the triangle PQR.

The coordinates of the vertices P,Q and R of a triangle PQR are (1,-1,1), (3,-2,2) and (0,2,6) respectively. If angleRQP=theta , then what is angle PRQ equal to ?

The coordinates of the vertices P,Q and R of a triangle PQR are (1,-1,1),(3,-2,2) and (0,2,6) respectively. If angleRQP=theta , then what is anglePRQ equal to ?

The coordinates of the vertices of a triangle are (0,0) , (5,3) and (3,5) respectively , find the circumcentre and circumradius of the triangle .

In the fig. triangle PQO with coordinates of P and O as (3,0) and (0,0) respectively, PQ=5. Find the coordinates of Q.

The coordinate of the vertices B and C of the triangle ABC are (5,2,8) and (2, -3, 4) respectively, if the coordinates of the centroid of the triangle are (3, -1,3), then the coordinates of the vertex A are-

If the origin is the centroid of the triangle whose vertices are A (2,p,-3), B(q,-2,5) and C(-5,1,r), then find the values of p,q and r.