EM-2263
Volume and surface area of solids
E Math · Secondary 4 · Medium · Volume and surface area of solids
A solid metal sphere has radius 5 cm. It is melted down and recast into identical solid metal balls, each of radius 2 cm. Using the volume formula for a sphere, how many such balls can be made from the original sphere?
- 10
- 12
- 15
- 20
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