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

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter6: Circles
Section6.3: Line And Segment Relationships In The Circle
Problem 41E
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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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