Three capital letters that have two lines of symmetry are "O", "H", and "I" since they can be reflected either horizontally or vertically and still look the same.
I x o l
H, I, and O
o x l I
X, H, I and (if they can have more than two lines of symmetry) O.
H, I and X. O has infinitely many and so does have 2.
2
Five.H , I , O , X( ' O ' has 2 lines of symmetry and more besides and ' X ' has 4 )
O and X And H and I (Note "O" has many, actually an infinite number of, lines of symmetry)
The letter L has no lines of symmetry, you cannot divide it in to 2 identical halves.
2
2 lines of symmetry
Lower case "o" and "x" both have two lines of symmetry. Upper case letters with two lines of symmetry are: "O," "X," "H" and "I."