MathDB
Math Prize 2019 Problem 3

Source:

October 15, 2019
Math Prize for Girls

Problem Statement

The degree measures of the six interior angles of a convex hexagon form an arithmetic sequence (not necessarily in cyclic order). The common difference of this arithmetic sequence can be any real number in the open interval (āˆ’D,D)(-D, D). Compute the greatest possible value of DD.