مساحه الدائره. مساحة الدائرة

Smith, Geoff, and Leversha, Gerry, "Euler and triangle geometry", Mathematical Gazette 91, November 2007, 436—452 A Distorted View of Geometry
, The Elements of Geometry, in Eight Books; or, First Step in Applied Logic London, Longmans, Green, Reader and Dyer, 1874 , p 3 in Introduction to Geometry, 2nd ed

قانون مساحة نصف الدائرة

"Circles: A Mathematical View, rev.

طريقة حساب مساحة الدائرة
"The History of the Solution of the Cubic Equation", Mathematics News Letter 5 4 , p
قانون مساحة ومحيط الدائرة
Berlin, New York: DE GRUYTER
قانون مساحة ومحيط الدائرة
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"On the Equations and Properties: 1 of the System of Circles Touching Three Circles in a Plane; 2 of the System of Spheres Touching Four Spheres in Space; 3 of the System of Circles Touching Three Circles on a Sphere; 4 of the System of Conics Inscribed to a Conic, and Touching Three Inscribed Conics in a Plane" in modern notation, with introductory chapters
"On the areas of cyclic and semicyclic polygons" PDF The Secrets of Triangles, Prometheus Books, 2012

قانون مساحة نصف الدائرة

Dragutin Svrtan and Darko Veljan, "Non-Euclidean versions of some classical triangle inequalities", Forum Geometricorum 12 2012 , 197—209.

دائرة
Alsina, Claudi and Nelsen, Roger, Icons of Mathematics
قانون مساحة الدائرة
"The Evolution of the Isoperimetric Problem"
مساحة ومحيط الدائرة
, : A History of Man's Changing Vision of the Universe 1959• See in particular the bottom of p