# How do I figure out how many spheres the size of Pluto would it take to have the volume as a sphere the size of earth?

by ihatemath1234 on May 24, 2013Q: The radii of Earth and Pluto are 6,371 kilometers and 1,161 kilometers, respectively. Approximately how many spheres the size of Pluto does it take to have the same volume as Earth?

Tags: volume

Math is awesome!

Just calculate the volume of each sphere: http://en.wikipedia.org/wiki/Sphere#Volume_of_a_sphere

And then divide them!

Mark (Uber Geek) says: on May 24, 2013 at 9:27 am