Area measurements with holes

[JoeML]

Hello everyone
This is the first time i write in this forum and i dont write english very
well so i hope you can understand me and help me.
I want to measure the area in red, only the red area of this picture, so i
have two questions:
1- When I select the area in imageJ is it calculated the area including the
holes?
2- How can I calculate the area without the hole, ergo, only the sign in
red?
<http://imagej.1557.n6.nabble.com/file/n5000165/Sin_t%C3%ADtulo.png>

Thank you very much



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