Geometry Sunday Puzzle on NPR

This week’s Sunday Puzzle with Will Shortz on NPR is geometry. Answers due by 3 pm Thursday, October 11, 2012.

Note added 14 October 2012. The answer was 82, with only 65 correct submissions.

About Frank Morgan:

Frank Morgan works in minimal surfaces and has published 200 articles and six books. He is currently Atwell Professor of Mathematics Emeritus at Williams College.