# Doubled Spheres

Move the slider for a to manipulate this applet. The following are all based on the variable a:
-The radius of the small sphere is a
-The radius of the large sphere is 2a
-The Volumes and Surface Areas of the spheres are displayed dynamically on the left
-Point D is a point (x,y) of (radius, volume) for the small sphere
-Point F is a point (x,y) of (radius, surface area) for the small sphere

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