Keliling = sisi + sisi + sisi
Masukkan x = 8
Sisi terpendek adalah 16 B
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54 = (x + 11) + (3x -5) + (2x)
54 = 6x + 6
54 - 6 = 6x
48 = 6x
48/6 = x
8 = x
jadi x +11 = 8+11= 19cm
3x - 5 = 3(8) - 5 = 19 cm
2x = 2(8) = 16 cm
Keliling = sisi + sisi + sisi
Masukkan x = 8
Sisi terpendek adalah 16 B