Re: Problems finding out the area of a 0.5mm circle.

Hi Michael, I have a basic idea of how units work and I was confused
about how squared units work but I think I'm getting the hang of
squared units now, but I have absoluetly NO IDEA what "exponatential
notation" is. I'm a  maths novice and I want to work out the following
problem for an art project. Thanks for any help you can offer.

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