Penjelasan dengan langkah-langkah:
° buku bacaan
= 360 - (40 + 25 + 15)
= 360 - (40 + 40)
= 360 - 80
= 280°
banyak buku bacaan :
= 280/360 × 1800
= 28/36 × 1800
= 50400/36
= 1.400
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Penjelasan dengan langkah-langkah:
° buku bacaan
= 360 - (40 + 25 + 15)
= 360 - (40 + 40)
= 360 - 80
= 280°
banyak buku bacaan :
= 280/360 × 1800
= 28/36 × 1800
= 50400/36
= 1.400