When the surface area of a body is calculated by Fusion 360, does it subtract the holes?

[Inspections_JCH]

I have designed a large disk with a number of large holes that represent more than 50% of the total area or the disk. The calculations of the area by Fusion 360 make no sense. It seems as if the holes are not subtracted. Am I looking at the wrong value in the properties of the component?  There is only one body in the component, so I am expecting a simple calculation. And if it is based on the entire area, it is still lower than my calculation by 3.5%. I calculate the area using Pi *R Squared.

[laughingcreek · Accepted solution]

when I do a simple (easy to calculate) shape with holes it's dead on.  I suspect your calculations are off.  you can check your self by clicking on each face and getting the area of individual faces.  you might find the discrepancy that way

[Inspections_JCH]

Yes, the property reported by fusion is the area of all surfaces of the entire 3 dimensional body(s). I was thinking flat plane of what I saw in the top  view.