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maka perbandingan diagonal menjadi 3x : 4x
selisih diagonal = 4x-3x = 6
x = 6
maka d1 = 3.6 = 18
d2 = 4.6 = 24
Luas = d1.d2 / 2 = 18x24/2 = 216 cm²
x = 6
maka d1 = 3.6 = 18
d2 = 4.6 = 24
Luas = d1.d2 / 2 = 18x24/2 = 216 cm²