SOLUTION: Diameter of a circle. If the diameter of a circle is 1.3*10^12 meters, then what is its radius?

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Question 274977: Diameter of a circle. If the diameter of a circle is 1.3*10^12 meters, then what is its radius?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Diameter of a circle. If the diameter of a circle is 1.3*10^12 meters, then what is its radius?
The radius is 1/2 the diameter.
d = 1.3E-12
r = 0.65E-12 = 6.5E-13
Or 6.5*10^13 if you prefer the inconvenience
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I would call it 0.65 picometers, or 650 attometers, myself