Introduction :

Symmetry is the one of the important topic in geometry. Symmetry means the image of the one part is equal to exact shape of another part. That is we can cut the shape into exactly two
parts. Those two parts remains the same size and it is similar to the reflection of another part. In this topic we have to discuss about the number of lines of symmetry for each geometrical
shape.

Brief Explanation about Number of Lines of Symmetry in some Geometrical Figures

Pictorial Representation:

Lines of Symmetry

Equilateral Triangle:

The numbers of lines of symmetry in the equilateral triangle has 3.

Isosceles triangle:

The numbers of lines of symmetry in the Isosceles triangle have 1.

Scalene triangle:

The numbers of lines of symmetry in the Scalene triangle have 0.

Square:

The numbers of lines of symmetry in the Square has 4.

Parallelogram:

The numbers of lines of symmetry in the Parallelogram have 0.

Trapezoid:

The numbers of lines of symmetry in the Trapezoid have 0.

Pentagon:

The numbers of lines of symmetry in the regular Pentagon has 5.

Hexagon:

The numbers of lines of symmetry in the regular Hexagon has 6.

Heptagon:

The numbers of lines of symmetry in the regular Heptagon has 7.

Octagon:

The numbers of lines of symmetry in the regular octagon has 8.

Circle:

The number of lines of symmetry in the circle has infinite.

Ellipse:

The numbers of lines of symmetry in the ellipse have 2.

Brief Explanation about Number of Lines of Symmetry in Alphabets

Pictorial Representation:

Lines of Symmetry

Alphabet ‘x’:

The numbers of line of symmetry in the Alphabet ‘x’ has 2.

Alphabet ‘I’:

The numbers of line of symmetry in the Alphabet ‘I’ has 2.

Alphabet ‘E’:

The numbers of line of symmetry in the Alphabet ‘E’ have 1.

Alphabet ‘H’:

The numbers of line of symmetry in the Alphabet ‘H’ has 2.

Alphabet ‘C’:

The numbers of line of symmetry in the Alphabet ‘C’ have 1.

Alphabet ‘M’:

The numbers of line of symmetry in the Alphabet ‘M’ have 1.