Asked by mike
What is the perimeter of PQR with vertices P(–2, 9), Q(7, –3), and R(–2, –3) in the coordinate plane?
Answers
Answered by
Reiny
Use your distance between 2 points formula to find the 3 sides, then add them up
I will do one of them
PQ = √( 7-(-2))^2 + (-3-9)^2 )
= √(81 + 144) = √225 = 15
I will do one of them
PQ = √( 7-(-2))^2 + (-3-9)^2 )
= √(81 + 144) = √225 = 15
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