Question

An equilateral triangle has ________ lines of symmetry.

• A. 0
• B. 1
• C. 3
• D. 2

Answer 1

Answer: (C)

3

$\Rightarrow$ The line of symmetry can be defined as the axis or imaginary line that passes through the center of the shape or object and divides it into identical halves.

$\Rightarrow$ An equilateral triangle, which has three equal sides, has three lines of symmetry. This is because you can fold an equilateral triangle in half three times.

$\therefore$ An equilateral triangle has $3$ lines of symmetry.