Question

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

Explanation:

Step1: Define line of symmetry

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

Step2: Analyze equilateral triangle

For an equilateral triangle, we can draw a line from each vertex to the mid - point of the opposite side.

Step3: Count lines

There are 3 such lines.

Answer:

C. 3