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V1 : V2 = 1 : 8
Ditanya r1 ÷ r2 = ?
Pembahasan
Rumus volume bola adalah
V=4/3 π r³
V1=4/3 π (r1)³
V2=4/3 π (r2)³
V1 ÷ V2 = 4/3 π (r1)³ ÷ 4/3 π (r2)³
8 ÷ 1 = (r1)³ ÷ (r2)³
8 = (r1 : r2)³
2³ = (r1 : r2)³
2 = r1 : r2
2/1= r1 : r2
r1 : r2 = 2/1
r1 : r2 = 2 : 1
Jawab
Perbandingan r1 dan r2 adalah 2 : 1
Selamat belajar !
@Wello1
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