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2(p+l) =kliling
2(p+l) = 54
p +l = 54
2l + l = 27
3l = 27
l = 9
P =2l = 18
luas = pxl = 18x9 =162m²
Rumus kell = 2p + 2l
= 2 x 2l + 2l
54 = 4l + 2l
54 = 6l
9 = lebar
p = 2 x 9 = 18 m
Luas = p x l
= 18 x 9
= 162 m^2