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24 = 6x
x = 4
p = 2.4+1 = 9 cm
l = 4.4-1 = 15 cm
L = 9 . 15 = 135 cm² (a)
48 = 2((2x+1)+(4x-1))
48 = 2(6x)
48 = 12x
x = 4
L = p x l
L = (2x+1) x (4x-1)
L = 9 x 15
L = 135 cm^2 (a)