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Assessment
What is the formula for the volume of a sphere?
V = (4/3)πr³
V = 2πr
V = πr²h
V = 4πr²
What is the surface area of a sphere?
A = 2πr
A = πr²
A = 4πr²
A = (3/2)πr²
If the radius of a sphere is doubled, how does its volume change?
The volume stays the same.
The volume doubles.
The volume increases by a factor of 8.
The volume increases by a factor of 4.
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