I tried to create a polygon over a circular sector, but it failed (the polygon field disappears)
Please post your file and say what you typed exactly
Thanks for your answer, the explaining file is attached in this link
Please post your. .ggb file
sorry but cannot find any converter from mp4 to ggb
You need to save the .ggb file from GeoGebra
I wish these photos can explain it
we need the ggb but try selecting properties--->advanced------>layer--->3 for the polygon
cannot find properties, where is it?
right click on polygon
Thank you so much, it helped me
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