It is the same as in shapes, the ability to be divided into two equal halves either vertically or horizontally. Not all letters have a line of symmetry, and some have two (H, X, O).
There are 11 letters with only one line of symmetry.
There are many letters that don't have a line of symmetry!BFJLNPQRS
H, A, V, and E have line of symmetry
C has 1 horizontal line of symmetry V & W have one vertical line of symmetry.
g
Letters that have a vertical line symmetry: WTYUIOAHXVM Letters that have a horizontal Line symmetry: EIODHKCB
all letters have a line of symmetry
The letters S and N have point symmetry but not line symmetry.
It has 1 vertical line of symmetry
There are 11 letters with only one line of symmetry.
The letters H and Z have both line symmetry and rotational symmetry
There are many letters that don't have a line of symmetry!BFJLNPQRS
H, A, V, and E have line of symmetry
C has 1 horizontal line of symmetry V & W have one vertical line of symmetry.
g
H,i,o,x
A letter I i.