p = l + 14
l = l
k = 2(p+l)
108 = 2(l+14+1)
108 = 2(2l +14)
108 = 4l + 28
108 - 28 = 4l
80 = 4l
20 = l
L = p x l
= (20+14) x 20
= 34 x 20
= 680 cm²
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p = l + 14
l = l
k = 2(p+l)
108 = 2(l+14+1)
108 = 2(2l +14)
108 = 4l + 28
108 - 28 = 4l
80 = 4l
20 = l
L = p x l
= (20+14) x 20
= 34 x 20
= 680 cm²
maaf kalau ada kesalahan