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= (2.p / l - 1) . sisa karton
= (2.36 / 24 - 1) . 4
= (72/24 - 1) . 4
= (3 - 1) . 4
= 2 . 4
= 8 cm
3(24-2x) = 2(32-x)
72-6x = 64-2x
72-64 = 6x-2x
8 =4x
x = 8/4
x =2
bagian sisa karton kiri kanan dan atas adalah 2.