170 degrees
The measure of each interior angle of a fifteen sided regular polygon, a pendedecagon, is 156o.
135 Each interior angle of a regular octagon measures 135 degrees.
A regular polygon having an interior angle measure of 168o has 30 sides and is called a triacontagon.
Each interior angle measures 144 degrees
The interior angle of an octdecagon, an 18 sided regular polygon, is 160o.
Each interior angle will measure 162 degrees
The measure of each interior angle of a fifteen sided regular polygon, a pendedecagon, is 156o.
It is: 180-exterior angle = interior angle because there are 180 degrees on a straight line
144
120°
135 Each interior angle of a regular octagon measures 135 degrees.
A regular trapezoid (!) is a square. And each interior angle of a square is 90 degrees.
Each interior angle of a regular 9 sided nonagon measures 140 degrees
Each interior angle of a regular 8 sided octagon measures 135 degrees
A regular polygon having an interior angle measure of 168o has 30 sides and is called a triacontagon.
It will have 14 sides and each interior angle will measure 2160/14 degrees
Each interior angle measures 135 degrees