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k = 88 cm
p & l = ?
k = 2(p + l)
88 = 2(2l - 4 + l)
88 = 2(3l - 4)
88 = 6l - 8
96 = 6l
16 = l
l = 16 cm
p = 2l - 4
p = 2.16 - 4
p = 32 - 4
p = 28 cm