Question

how many lines of symmetry does this equilateral triangle have?

Explanation:

Step1: Recall the definition of line of symmetry

A line of symmetry divides a figure into two congruent parts.

Step2: Analyze an equilateral triangle

An equilateral triangle has three angles equal to \(60^{\circ}\) and three equal sides.

Step3: Identify the lines of symmetry

• The line from a vertex to the mid - point of the opposite side.
• Since there are three vertices, there are three such lines.

Answer:

3