42
120
Total 1440o; if regular, each angle = 144o
5 degrees
40
The measure of each interior angle of a fifteen sided regular polygon, a pendedecagon, is 156o.
Providing that it is a regular 38 sided polygon then each interior angle will measure: 170o31'34.74''
The interior angle of an octdecagon, an 18 sided regular polygon, is 160o.
42
120
75
40
40
Providing that it is a regular 12 sided polygon then each exterior angle measures 30 degrees
This figure is a regular 12-sided polygon. Find m<4
Total 1440o; if regular, each angle = 144o
5 degrees