(4 points) Suppose we have the triangle with vertices P(1,2,1), Q(-3,10,5), and R(5,-6,3). Answer the following...

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(4 points) Suppose we have the triangle with vertices P(1,2,1), Q(-3,10,5), and R(5,-6,3). Answer the following questions. 1. Find a non-zero vector orthogonal to the plane through the points P, Q, and R. Answer: 2. Find the area of the triangle APQR. Area: (4 points) Suppose we have the triangle with vertices P(1,2,1), Q(-3,10,5), and R(5,-6,3). Answer the following questions. 1. Find a non-zero vector orthogonal to the plane through the points P, Q, and R. Answer: 2. Find the area of the triangle APQR. Area: