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OpenStudy (anonymous):
The vertices of quadrilateral QRST are listed below. Q(-5, 4), R(4, 4), S(2, -6), T(-7, -6) What is the approximate perimeter of the quadrilateral? 28.2 units 38.4 units 19.2 units 91.78 units
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OpenStudy (anonymous):
I will medal and fan who ever helps me with his
OpenStudy (er.mohd.amir):
perimeter is sum of all sides so find side since distance between two points is given by D^2 = (x2-x1)^2 + (y2-y1)^2 take two -two points and find distance
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