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3m=300cm
A. 1:10
450:10=45cm
300:10=30cm
NIE
B.1:50
450:50=9cm
300:50=6cm
NIE
C. 1:75
450:75=6cm
300:75=4cm
NIE
D. 1:25
450:25=18cm
300:25=12cm
TAK