Question

An equilateral triangle has

• A. only one line of symmetry
• B. two lines of symmetry
• C. three lines of symmetry
• D. no line of symmetry

Answer 1

The correct option is C

three lines of symmetry

Step $1$: Explanation for the correct option :

Option $\mathrm{C}$ : Since an equilateral triangle is symmetrical about each one of the bisectors of its interior angles.

Therefore, an equilateral triangle has three lines of symmetry.

Step $2$: Explanation for incorrect option :

Options $\mathrm{A},\mathrm{B}\mathrm{and}\mathrm{D}$ do not give the correct answers.

Hence, the correct option is $\mathrm{C}$.