Creating buffer by area (not distance)

Discussion created by ViniciusTonetti on Jun 30, 2014
Latest reply on Jul 2, 2014 by ViniciusTonetti
Hello everyone,

I'm beginner in Arcgis, so sorry if this theme is not appropriate for this forum. My question is quite simple. I wanna create a buffer with more 20% of the area of a polygon that already exist. This extra area will surround my polygon. I've just found in help how to create a buffer by distance. But my problem is that I don't know what is the linear distance I must add to my polygon that will add 20% of it's area... Can someone help me?

Many thanks!