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Question 7 (20 points)
The following points make a quadrilateral on a coordinate plane.
P(0, 0), Q(-1, 4), R(8, 2), 5(7,6)
-2
Q
8
-6
P
2
units

S
R
8
10
Using these coordinate points, what is the perimeter of quadrilateral PQSR? Round your final answer to the nearest tenth of a unit.