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110 = 2(7x) + 2(4x)
110 = 14x + 8x
110 = 22x
x = 5
p = 7x
p = 35 cm
l = 4x
l = 20 cm
luas = p x l
luas = 35 x 20
luas = 700
p = 7/11 x 55 = 35
l = 4/11 x 55 = 20
Luas = 35 x 20
= 700 cm² (B)
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