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P=22cm
L=P*l
L=22*16
L=352cm2
l = 16 m
p = ?
Jawab : K = 2(p+l)
76 = 2(p+16)
76 = 2p + 2.16
76 = 2p + 32
76-32 = 2p
44 = 2p
22 = p
Luas : p x l
: 22 x 16
: 352 cm