What is the internal angle for a regular 27 sided polygon?

We can calculate the size of interior angle by first subtracting the number r of sides by 2, multiply that by 180, and divide that by the number of sides.

(27 - 2) x 180 ° / 27

=166.66666667°

Therefore each interior angle of a regular 27 sides polygon is 166.66666667°

Round up if needed