Find a nonzero vector orthogonal to the plane through the point P, Q,and R. (b) also find the area of triangle PQR
P(1,0,1) , Q(-2,1,3) , R(4,2,5)
-Finding the Angle
The Attempt at a Solution
1. i found the vectors for PQ = <-3,1,2> and PR = <3,2,4>
2. i perform the cross product (PQ X PR), which got me <0,18,-9>
Can anyone help me?