Check out this webpage: http://en.wikipedia.org/wiki/Regular_polygon The internal angle of a regular polygon = (1-2/No. of sides) x 180 If the no. of sides of a regular polygon is P, then, 162 = (1-2/P) x 180 or P=20 sides
Hint: in a regular polygon interior plus exterior = 180o, always.
hexagon
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.
1440 degrees
1440 degrees
The polygon will have 12 equal sides and each interior angle measures 150 degrees.
It is a regular 20 sided polygon
15
A four-sided regular polygon (square or rectangle) has 900 interior angles.
If it's a regular polygon then each interior angle measures 120 degrees.
1800 degrees
360