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92 = 2 (27/2 x +7 + 10x - 8)
92 = 2 (47/2x - 1 )
92 = 47x - 2
94 = 47x
x = 2
p = 27/2 . 2 + 7 = 34
l = 10 . 2 - 8 = 12
luas = pxl = 34x12 = 408 cm²