Triangle Transformation Principle

The triangle transformation principle gives rules for transforming equations involving an Incircle to equationsabout Excircles.

References

Johnson, R. A. Modern Geometry: An Elementary Treatise on the Geometry of the Triangle and the Circle. Boston, MA: Houghton Mifflin, pp. 191-192, 1929.

• Elongated Pyramid
• Elongated Rotunda
• Elongated Square Cupola
• Elongated Square Dipyramid
• Elongated Square Gyrobicupola
• Elongated Square Pyramid
• Elongated Triangular Cupola
• Elongated Triangular Dipyramid
• Elongated Triangular Gyrobicupola
• Elongated Triangular Orthobicupola
• Elongated Triangular Pyramid
• Elsasser Function
• Wilson's Primality Test
• Wilson's Theorem
• Wilson's Theorem Corollary
• Wilson's Theorem (Gauss's Generalization)
• Winding Number (Contour)
• Winding Number (Map)
• Windmill
• Window Function
• Winkler Conditions
• Winograd Transform
• Wirtinger's Inequality
• Wirtinger-Sobolev Isoperimetric Constants
• Witch of Agnesi