The letter 'O' has unlimited lines of symmetry .
four
H, o
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."
An infinite number
O
b
letter o and x
it has no lines of symmetry
the letter Q has no lines of symmetry ➘㊥
The letter R has no lines of symmetry
There are no lines of symmetry in the letter F