kel = 120cm
p+l = 120/2
= 60cm
=>agar mendapat hasil maksimum maka panjang dan lebarnya sama
=>panjang = 30cm
=>lebar = 30cm
luas maksimum = 30x30 = 900cm²
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kel = 120cm
p+l = 120/2
= 60cm
=>agar mendapat hasil maksimum maka panjang dan lebarnya sama
=>panjang = 30cm
=>lebar = 30cm
luas maksimum = 30x30 = 900cm²