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BC = x+3 cm
AC = x+ 5 cm
K = AB+BC+AC
38 = x + x + 3 + x + 5
38 = 3x + 8
3x = 38-8
x = 30/3
x = 10
AC = X+5 = 10+5 = 15 CM
Jadi panjnag AC dalah 15 cm
AB = x
BC = x + 3
AC = x + 5
Dit = AC = ?
x + x + 3 + x + 5 = 38
3x + 8 = 38
3x = 30
x = 10
AC = x + 5 = 10 + 5 = 15 cm