Question

which diagram represents a line of symmetry for the regular pentagon?

Explanation:

Step1: Recall line - symmetry concept

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

Step2: Analyze regular pentagon

A regular pentagon has 5 lines of symmetry. Each line of symmetry passes through a vertex and the mid - point of the opposite side.

Step3: Check diagrams

The second diagram (the one with a vertical dashed line passing through a vertex and the mid - point of the opposite side) represents a line of symmetry for the regular pentagon.

Answer:

The second diagram (the one with a vertical dashed line passing through a vertex and the mid - point of the opposite side)