A 10 sided polygon or a decagon has interior angles that add up to 1440 degrees
Chat with our AI personalities
The answer is 11 sides If a polygon with 10 sides the sum of the interior angles are 1440° So 1440°+180°= 1620°
If the interior angle measures 1440 you have a serious problem. If the sum of the interior angles is 1440, then the question can be answered as follows: The sum of the interior angles of a n-gon is (n-2)*180 degrees So (n-2)*180 = 1440 So that n-2 = 8 and so n = 10
144 degrees; sum of interior angles in a polygon = (n-2)180 degrees. 180(18)=1440. 1440/10=144. (n=no. of sides.)
Theorem 6-1-2; Polygon Exterior Angle Sum Theorem:The sum of the exterior angle measures, one angle at each vertex, of a convex polygon is 360 degrees.
== ==