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Answer:
n = 10
10, 42, 34
Step-by-step explanation:
permiter = length of each of the sides
86 = n + (4n +2) + (2n + 14)
solve for n
n = 10
put n back in the original equations
n = 10
4(10) + 2 = 42
2(10) +14 = 34