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Verified answer
Penyelesaian:Diket.:
K=54 cm
p=2l
l=l
Ditanya:
L=....?
Jawab:
2p + 2l=K
2(2l) + 2l=54
4l + 2l=54
6l=54
l=54/6
l=9 cm
p=2l
p=2(9)
p=18 cm
L=p×l
L=18×9
L=162 cm²
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