(adsbygoogle = window.adsbygoogle || []).push({}); how do you find the approximate uncertainty of a circle of radius 3.8x10^4????

1. The problem statement, all variables and given/known data

how do you find the approx uncertainty for a circle with radius 3.8x10^4, i have no idea how to get the final uncertainty of the circle the radius uncertainty is 0.1x10^4

area of a circle is pie*r^2? so that means the area of the circle should be 4.5x10^9 isnt it???

3. The attempt at a solutioni figured that because there is only one variable that the uncertainty would just be 0.1x10^4, how do you work out the final uncertainty properly?????

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# How do you find the approximate uncertainty of a circle of radius 3.8x10^4?

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