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K = 2 (p+l)
56 = 2 (p+l)
56/2 = (p+l)
28 = (p+l)
*p=4/7 x 28 = 16
*l = 3/7 x 28 = 12
Bukti:
K= 2 (p+l)
= 2 (16+12)
= 2 (28)
= 56