Hi @faradji_1,
Kindly please be informed that the KoBoToolbox Form Builder UI does not support the visualization of geotrace or geoshape. It only supports the geopoint as outlined in the image below (I had geoshape data in my account but the UI does not support the visualization):
You will need to extract the data and analyze it or visualize it in a different software that supports the same viz. QGIS, ArcGIS etc.
Have a great day!