James Parnell answered How many degrees are in a pentagon? A pentagon has 540 degrees.It is a five-sided closed figure, and a regular pentagon consists of: Five angles - which are all 108 degrees. The sum of internal angles of a pentagon is (108 × 5) 540 degrees.It has 5 edges.It has 5 vertices.The formula to find total number of degrees in an n-sided shape is: (n - 2) x 180 degrees.A pentagon has a total of 540 degrees!