The measure of each exterior angle of a regular hexagon is 60°.

Here’s the quick reasoning:

  • The sum of all exterior angles of any polygon is always 360°.
  • A regular hexagon has 6 equal sides, so it has 6 equal exterior angles.
  • Each exterior angle =360∘6=60∘=\frac{360^\circ}{6}=60^\circ =6360∘​=60∘.

So, the answer to “what is the measure of an exterior angle of a regular hexagon?” is 60 degrees.