Question

a regular decagon has 10 sides. how many reflectional symmetries does a regular decagon have? o 5 o 10 o 15 o 20

Explanation:

Step1: Recall symmetry property of regular polygon

A regular polygon with \(n\) sides has \(n\) lines of reflectional symmetry.

Step2: Identify \(n\) for decagon

A decagon has \(n = 10\) sides.

Answer:

B. 10