Find the area of the triangle determined by the points P, Q, and R. Find a unit vector perpendicular to plane PQR. P(1, - 1, - 2), Q(-2,0, - 1), R(0, - 2,1) The area of the triangle is (Type an exact answer, using radicals as needed.)

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Vectors In Two And Three Dimensions
Section9.CR: Chapter Review
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Find the area of the triangle determined by the points P, Q, and R. Find a unit vector perpendicular to plane PQR
P(1, - 1,- 2), Q(- 2,0, – 1), R(0, - 2,1)
The area of the triangle is
(Type an exact answer, using radicals as needed.)
Transcribed Image Text:Find the area of the triangle determined by the points P, Q, and R. Find a unit vector perpendicular to plane PQR P(1, - 1,- 2), Q(- 2,0, – 1), R(0, - 2,1) The area of the triangle is (Type an exact answer, using radicals as needed.)
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