Sangeetha Pulapaka

  There are many types of symmetry in Math, but the simplest symmetry is the reflection symmetry (also called the line symmetry or mirror symmetry). This is easy to identify 'cos when you draw a line in the middle, you see that one half is the reflection of the other half. You can even write the alphabet on a paper and fold it in the middle to check if it has a line of symmetry.

To answer your question, the capital letters A,B,C,D,E,K,M,T,U,V,W and Y have just one line of symmetry.

The capital letters F,G,J,L,N,P,Q,R,S and Z have no line of symmetry.

McDonalds Logo and the Batman's logo also have line of symmetry!