Neptune is approximately a sphere of radius 221 x 107 m a

Neptune is approximately a sphere of radius 2.21 x 10⁷ m.

(a) What is its circumference in kilometers?

(b) What is its surface area in square kilometers?

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Neptune is approximately a sphere of radius 221 x 107 m a : neptune is approximately a sphere of radius 2.21 x 107 m.a what is its circumference in kilometers?b what is its

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