Connections
International Standard Book Number
Entity
pound sterling
Entity
radius
Entity
digital object identifier
Entity
The Times
Entity
equilateral triangle
Entity
heptagon
Entity
Q118398
Entity
regular polygon
Entity
dalasi
Entity
Martin Gardner
Entity
Q22908627
Entity
Reuleaux triangle
Entity
convex polygon
Entity
convex hull
Entity
circular arc
Entity
Franz Reuleaux
Entity
Q536457
Entity
Mathematical Reviews
Entity
curve of constant width
Entity