Question

which line is a line of symmetry for this regular polygon?
line i
line j
line k

Explanation:

Step1: Recall line - symmetry concept

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

Step2: Analyze line i

Line i divides the regular polygon into two congruent halves.

Step3: Analyze line j

Line j does not divide the polygon into two congruent parts.

Step4: Analyze line k

Line k does not divide the polygon into two congruent parts.

Answer:

line i