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P * L = 108
4x * 3x = 108
12x² = 108
x² = 108 / 12
x² = 9
x = √9
x = 3
panjang = 3 * 4 = 12 cm
lebar = 3 * 3 = 9 cm
tinggi = 3 * 2 = 6 cm
Luas permukaan = 2(PL + PT + LT)
= 2 ((12)(9) + (12)(6) + (9)(6))
= 2 (108 + 72 + 54)
= 2 (234)
= 468 cm²
108 = 4x × 3x
108 = 12x²
x² = 9
luas permukaan = 2 ( pl + pt + lt)
= 2 (12x² + 8x² + 6 x²)
= 2 (26x²)
= 2 (26 × 9)
=18 x 26
= 468 cm²
maaf jika salah