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PT.... PL.... LT
2n.... 3n ... 4n
PT(PL) (LT) = (PLT)²
2n(3n) (4n) = 9.000²
24n³ = 81.000.000
n³= 3.375.000
n = 150
PT= 2n= 300
PL=3n= 450
LT=4n =600cm²
P² = PT(PL) /LT = 300(450)/600
P² =225
p = 15 cm
T = √300(600) /450
T =√400 = 20cm
L= √PL(LT)/PT= 450(600)/300
L=√900 = 30cm
ukurannya = P,l,T = 15,20,30
terpendek = 15cm