The points P: (-2,0,0), Q: (0,1,1) and R: (1,2,1) are givena. determine the angle in the triangle ΔPQR at corner Qb. determine the area of the triangle

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter9: Real Numbers And Right Triangles
Section9.5: The Distance And Midpoint Formulas
Problem 50E
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The points P: (-2,0,0), Q: (0,1,1) and R: (1,2,1) are given
a. determine the angle in the triangle ΔPQR at corner Q
b. determine the area of the triangle 

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