Symmetry Group of Isosceles Triangle/Cayley Table

Cayley Table of Symmetry Group of Isosceles Triangle
The Cayley table of the symmetry group of the isosceles triangle can be written:


 * $\begin{array}{c|cccccc}

& e & d \\ \hline e & e & d \\ d & d & e \\ \end{array}$

where:


 * $e$ is the identity mapping
 * $d$ is the reflection $d$ in the line through $A$ and the midpoint of $BC$.


 * Symmetry-Group-of-Isosceles-Triangle.png