Defining Bertin1953 projection in QGIS 3.18.2 Zürich

How do you define projection in QGIS?

To determine the projection of a layer, right click on the layer under the Layers window on the left side of the QGIS window. Next, under the Properties window, click on the Metadata tab. The CRS assigned to the layer can be seen under the label Layer Spatial Reference System.
 

How do I change projection in QGIS?

To change the projection of the current map project, click within the map projection information to pull up the CRS (Coordinator reference system) properties window. Using this window, we can search for and set a new projection or coordinate system for our map.
 

How do I fix projection in QGIS?

Open new map in QGIS and from menu bar select Project -> Project Properties. Select CRS tab on left side of Project Properties window and check the box “Enable ‘on the fly’ CRS transformation. Choose appropriate CRS, apply changes, and close window.