A hexagon is inscribed in a circle. Five of the sides have length 81 and the sixth, denoted by \overline{A B}, has length 31. Find the sum of the lengths of the three diagonals that can be drawn from A.
A hexagon is inscribed in a circle. Five of the sides have length 81 and the sixth, denoted by \overline{A B}, has length 31. Find the sum of the lengths of the three diagonals that can be drawn from A.