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Mathematics 18 Online
OpenStudy (pgxgirl103):

What is the perimeter of PQR with vertices P(-2,9), Q(7,-3), and R(-2,-3) in the coordinate plane?

OpenStudy (pgxgirl103):

21 units 25 units 34 units 36 units

OpenStudy (pgxgirl103):

I think 34 units

OpenStudy (bibby):

add the distances of PQ, QR, and RP

OpenStudy (kkutie7):

why don't you try graphing your points first

OpenStudy (pgxgirl103):

Okay hang on

OpenStudy (pgxgirl103):

I got 36

OpenStudy (pgxgirl103):

@Kkutie7

OpenStudy (kkutie7):

if you used an appropriate scale you should be able to see the length of your sides and add. I can't validate your answer because I haven't graphed it.

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