SOLUTION: I need help figuring this out. If the diameter of a circle is 13x10^-12 meters, then what is its radius?

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Question 280286: I need help figuring this out.
If the diameter of a circle is 13x10^-12 meters, then what is its radius?
Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
[13x10^-12]/2 = 6.5 x 10^-12