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Verified answer
Keliling = 54 mlebar = x
panjang = 2x
K=2(p+l)
54=2(2x+x)
54=6x
x=9 meter
jadi,
lebar = x
lebar = 9 m
panjang=2x
panjang=2.9
panjang=18 m
Luas=pxl
Luas= 18x9
Luas= 162m persegi (D)