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setelah di benarkan
panjangnya jadi 8.8cm
lebarnya jadi 7.2 cm
L setelah dibenarkan = 8.8 * 7.2 = 63.36
L sebenarnya = (8.8*100) *(7.2*100)= 880*720 = 633600
perbandingannya 63.36:633600 = 1 : 1000