Question

how many lines of reflectional symmetry does an equilateral triangle have?
1
2
3
4

Explanation:

Step1: Define line of reflectional symmetry

A line of reflectional symmetry divides a shape into two congruent parts.

Step2: Analyze equilateral triangle

An equilateral triangle has 3 lines of symmetry. One from each vertex to the mid - point of the opposite side.

Answer:

C. 3