if the angles of an n sided polygon are in A.P and a>=20 and d>=20 then wat is the maximum possible value of n? Choose the correct choice from the following answers:  A) 12  B) 14  C) 21  D) 25  E) cant determine
Sum of Interior angles of a polygon = (n-2) × 180° where n = number of sides   There will be n angles which are in A.P. Therefore,   Since we need to find maximum value of n, put minimum value for a and d.i.e., take a=20 and d=20   Then sum of the angles   =n/2[2×20+(n−1)20]   Therefore,   10n(n+1)=(n−2)180   n=14.52   Since number of sides must be a positive integer, maximum value of n = 14   ANSWER:14
<result>B</result>
if the angles of an n sided polygon are in A.P and a>=20 and d>=20 then wat is the maximum possible value of n?