Which statements are true about the lines of symmetry of a regular pentagon? check all that apply.
every line connects two vertices.
every line connects the midpoints of 2 sides.
every line bisects a vertex angle.
every line bisects a side.
every line is perpendicular to a side.

The answer is (C), (D) and (E).

Step-by-step explanation: We are given to select the true statements about the lines of symmetry of a regular polygon from the given options.

Attached herewith, an image of a square, which is a regular polygon. There are four lines if symmetry with the following properties:

(i) Every line bisects a vertex angle.

(ii) Every line bisects a side.

(iii) Every line is perpendicular to a side.

Thus, (C), (D) and (E) are correct options.