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The planet Neptune is roughly spherical and has surface area
Other · Subjective · AoPS · Mathematics · More Variables · Equations
Problem
The planet Neptune is roughly spherical and has surface area
≈
7.618
×
10
9
km
2
\approx 7.618 \times 10^9 \text{ km}^2
≈
7.618
×
1
0
9
km
2
. Estimate the radius of Neptune.
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