MSc Geography course you need to have BSc Geography course which requires you to have Mathematics compulsorily as a subject in your 10+2. So without Mathematics you can't do MSc Mathematics.

Now doing MA Geography also you can pursue your dream of being researcher. Not all the researchers in Geography are from the science background. During the PhD interviews & entrance, both MSc & MA graduates gives the same paper. So don't worry about that, if being a researcher is your dream then MA/MSc don't matter. The important thing that is required is your will power regarding the subject you are studying.

For more information regarding Geography as a career choice, consider visiting the link provided below:

https://www.careers360.com/courses/geography-course

I hope this helps. Wish you a great day!