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Orlov [11]
3 years ago
14

The ratio of the radii of two spheres is 3:1. The volume of the larger sphere is 729 in3. What is the volume of the smaller sphe

re?
243 in3

81 in3

54 in3

27 in3
Geography
1 answer:
Pachacha [2.7K]3 years ago
4 0
The volume of the sphere:
V = 4/3 · r³ π
The larger sphere:
729 = 4/3 · r³ · 3.14
r³ = ( 729 · 3 ) : ( 4 · 3.14 )
r³ = 174
r ( larger ) = ∛174 = 5.6 in
r ( smaller ) = 5.6 : 3 = 1.867 in
V ( smaller ) = 4/3 · 1.867³ · 3.14 = 27.246 ≈ 27 in³
Answer:
D ) 27 in³
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