R S Aggarwal Solutions for Chapter: Two-Dimensional Reflection Symmetry (Linear Symmetry), Exercise 1: EXERCISE 20

Draw the line (or lines) of symmetry of the following figure.

A parallelogram has no line of symmetry.

 An angle with equal arms has its bisector as the line of symmetry.

An equilateral triangle has three lines of symmetry.

A rhombus has four lines of symmetry.

A square has four lines of symmetry.

A rectangle has two lines of symmetry.

Each one of the letters $H, I, O, X$ of the English alphabet has two lines of symmetry.