alleryWhich algebraic expression calculates the total exterior area bounding a sphere of radius r?
A2pi * r^2
B4pi * r^2
C(4/3)pi * r^3
D(2/3)pi * r^3
Answer & Solution
Correct answer: B. 4pi * r^2
The surface area of a sphere with radius r is given by 4 * pi * r^2.
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