# Polygonal Angles 3 – Vertex Angles

Geometry Level 1

An equilateral triangle has an internal angle sum of $180^\circ$ and each vertex has angles of $60^\circ$. A square has an internal angle sum of $360^\circ$ and each vertex has an angle of $90^\circ$. A regular pentagon has an internal angle sum of $540^\circ$. What is the angle at each vertex of a regular pentagon?

×