Is there any extension to measure the angle between a line and a planes directly?

Operating system: Mac os
Slicer version: 4.11
Expected behavior: I want to measure the angle between a line and a plane in 3D model
Actual behavior: I have used similar extensions like “Angle planes” or " Q3DC", but none of them solve my problem……

There is no extension, but you can compute this with a few lines of Python code (for example: get the normal of the plane and the line and compute the angle between them). There are a number of very similar examples in the script repository.