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108 = 1/2 . 2x . 3x
108 = 1/2 . 6x2
6x2 = 108 : 1/2
6x2 = 216
x2 = 36
x = 6
maaf ya kl salaah:D
108 cm² = 1/2 × 2a × 3a
108 cm² = a × 3a
108 cm² = 3a²
108 cm² : 3 = a²
36 = a²
a = √36
a = 6
d1 = 2a = 2 × 6 = 12 cm
d2 = 3a = 3 × 6 = 18 cm