Answer:
The measure of each angle must be =

Explanation:
Regular Figure:
A figure where the measure of each angle is equal , is called a regular figure.
The given n- gon has n sides and n angles.
Now, here given the n - gon is a regular n - gon.
⇒ Each angle of the n-gon is equal in measure.
Hence, the measure of each angle must be =
