V = r³
4.096 = r × r × r
r³ = ³√4.096 cm³
r³ = ³√16 cm³
r = 16 cm
6.859 = r × r × r
r³ = ³√6.859 cm³
r³ = ³√19 cm³
r = 19 cm
1.728 = r × r × r
r³ = ³√1.728 cm³
r³ = ³√12 cm³
r = 12 cm
Maka,
r = 16 cm + 19 cm + 12 cm
r = 35 cm + 12 cm
r = 47 cm
Opsi B.
V¹=r³
4.096cm³=r³
∛4.096cm³=∛r³
16cm=r¹(rusuk ke 1)
______
V²=r³
6.859cm³=r³
∛6.859cm³=∛r³
19cm=r²(rusuk ke 2)
V³=r³
1.728cm³=r³
∛1.728cm³=∛r³
12cm=r³(rusuk ke tiga)
Rusuk gabungan=r¹+r²+r³
Rusuk gabungan=16cm+19cm+12cm
Rusuk gabungan=47cm(Opsi b)
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V = r³
4.096 = r × r × r
r³ = ³√4.096 cm³
r³ = ³√16 cm³
r = 16 cm
V = r³
6.859 = r × r × r
r³ = ³√6.859 cm³
r³ = ³√19 cm³
r = 19 cm
V = r³
1.728 = r × r × r
r³ = ³√1.728 cm³
r³ = ³√12 cm³
r = 12 cm
Maka,
r = 16 cm + 19 cm + 12 cm
r = 35 cm + 12 cm
r = 47 cm
Opsi B.
V¹=r³
4.096cm³=r³
∛4.096cm³=∛r³
16cm=r¹(rusuk ke 1)
______
V²=r³
6.859cm³=r³
∛6.859cm³=∛r³
19cm=r²(rusuk ke 2)
______
V³=r³
1.728cm³=r³
∛1.728cm³=∛r³
12cm=r³(rusuk ke tiga)
______
Rusuk gabungan=r¹+r²+r³
Rusuk gabungan=16cm+19cm+12cm
Rusuk gabungan=47cm(Opsi b)