Penjelasan dengan langkah-langkah:
luas ubin = s . s
= 25 . 25
= 625cm²
luas lantai
= 3 . 3
=9m²
= 90000cm²
banyak ubin
= luas lantai /luas ubin
= 90000/625
= 144 ubin
Panjang Sisi Kamar =3 m = 300 cm
Luas Persegi = sisi x sisi
Luas Kamar = 300 cm x 300 cm = 90.000 cm²
Luas ubin =25 cm x 25cm = 625 cm²
Banyak ubin yg dibutuhkan =90.000 : 625= 144 buah
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Penjelasan dengan langkah-langkah:
luas ubin = s . s
= 25 . 25
= 625cm²
luas lantai
= 3 . 3
=9m²
= 90000cm²
banyak ubin
= luas lantai /luas ubin
= 90000/625
= 144 ubin
Panjang Sisi Kamar =3 m = 300 cm
Luas Persegi = sisi x sisi
Luas Kamar = 300 cm x 300 cm = 90.000 cm²
Luas ubin =25 cm x 25cm = 625 cm²
Banyak ubin yg dibutuhkan =90.000 : 625= 144 buah