Hi, people,

I am new here and will need a lot of help, hope this is the right place!!

a line is drawn on a lamberts conformal chart which follows a parallel of latitude between 7°20ŽE and 3°30ŽE and represents 135NM the parallel of latitude on which the line is drawn is?

the correct answer is 54°

can someone tell me how to do it please!!

thanks!!