Method 1: Interior angles of regular n-sided polygon are ((2n - 4) x 90)/n degrees
When n = 9 this works out at 140 degrees.
Method 2: Exterior angles of regular n-sided polygon are 360/n degrees in this case 40 degrees, making interior angles 180 - 40 ie 140 degrees.
Chat with our AI personalities
How many sides does a regular polygon have if the measure of each interior angle is equal to 172 degress ?
No regular polygon has 160. The "smallest" polygon is the triangle, which has 180o. ^^FALSE!!!!!!! this polygon has 18 sides!
156 degees
171.428571 degrees (recurring decimal)
Interior angle 156 degrees Exterior angle 24 degrees 360/24 = 15 sides