Challenging Problems in Geometry and much else

and much else

among the crusaders who followed Richard the Lionheart to the Holy Lands

among them summability theory

Joseph Vehling's brilliant translation

For all cooks

Challenging Problems in Geometry and much elseDesigned for high school students and teachers with an interest in mathematical problem solving, this volume offers a wealth of nonroutine problems in geometry that stimulate students to explore unfamiliar or little known aspects of mathematics. Included are nearly 200 problems dealing with congruence and parallelism, the Pythagorean theorem, circles, area relationships, Ptolemy and the cyclic quadrilateral, collinearity and concurrency, and many