Answer:
Perimeter = 30.42
Explanation:
Using Distance Formula, √((x2-x1)^2 + (y2-y1)^2)
Find the Distance Between NO, OP, and NP
√((-3 - -3)^2 + (3 - 9)^2) - NO = 6
√((-3 - 5)^2 + (9 - -3)^2) - OP = 14.42
√((-3 - 5)^2 + (3 - -3)^2) - NP = 10
Sum All of Them = 10 + 6 + 14.42 = 30.42