For surface area calculations in some difficult form (such as shapes with many sides of the circular and irregular), will greatly facilitate assisted with Google SketchUp. That needs to be done is to draw it first, then the area can be known directly by Entity Info.
My thoughts became more relaxed thanks to Google SketchUp. Look at the picture above. I need to know how the surface area of the field. As I have said above, first I draw the appropriate pool in reality. Then selection of its surface area. Right click and select Entity Info.
For more clearly follow this interactive tutorial below.
Because it is an interactive tutorial, so you need to click the Play/Next button.
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