Geometreks

Strolling down a city street or along a country road can provide a geometrical feast for the eye—when the viewing is done from a mathematical perspective.

National Gallery of Art, East Building. I. Peterson

To fit the National Gallery’s East Building on a trapezoid-shaped site, architect I.M. Pei based his design on a division of a trapezoid into an isosceles triangle and a smaller right triangle.