Mathematical Issues Addressed. It reflects the contents of the site as of September 17, 1997. If you catch one of them, bring it to me, please. No bounty, sorry. N. Ovchinnikov and I.M. Sigal 1.
All questions have equal value.
High School H181. A regular pentagon of side length 1 is given. How to circles mensurate. High School H187. Unit squares in two n n checker boards were arbitrarily painted with the same number of red and blue squares.