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OpenStudy (anonymous):
What is the perimeter of triangle PQR with vertices P(–2, 9), Q(7, –3), and R(–2, –3) in the coordinate plane? (1 point) 21 units 25 units 34 units 36 units
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OpenStudy (triciaal):
perimeter is the sum of the lengths all around. you can use the distance formula to find the distance/length between any 2 points
OpenStudy (triciaal):
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