If each interior angle measures 174 degrees then it will have 60 sides
Providing that it is a regular 18 sided polygon each interior angle measures 160 degrees.
Each interior angle measures 140 degrees
It is a 5 sided regular pentagon and each interior angle measures 108 degrees
If it is a regular polygon and each interior angle measures 156 degrees then it will have 15 sides
The interior angle of any regular polygon can be calculated using the formula 180 * (n - 2) / n, where n is the number of sides. In this case, since each exterior angle measures 72 degrees, the interior angle would be 180 - 72 = 108 degrees. So the measures of the interior angles in this regular polygon would be 108 degrees.
If it's a regular polygon then each interior angle measures 120 degrees.
1800 degrees
It is a regular 20 sided polygon
1440 degrees
1440 degrees
A regular 12 sided polygon each interior angle measures 150 degrees
If each interior angle measures 174 degrees then it will have 60 sides
Not possible - the smallest interior angle for a regular polygon is 60 degrees - which creates an equilateral triangle.
540 degrees
Providing that it is a regular 18 sided polygon each interior angle measures 160 degrees.
Each interior angle measures 140 degrees