August 2018 2 60 Report
Lantai suatu ruang kelas permukannya berbentuk persegi panjang berukuran 8m x 9m dapat ditutupi tepat 450 buah keramik. ukuran keramikyang dipergunakan untuk menutupi lantai kelas tersebut adalah?
a.20cm x 20cm
b.25 cm x 25cm
c.30cm x 30cm
d.40cm x 40cm
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