Acronym  teddi, J63 
Name 
tridiminished icosahedron, vertex figure of sadi 
© ©  
Circumradius  sqrt[(5+sqrt(5))/8] = 0.951057 
Vertex figures  [3,5^{2}], [3^{3},5] 
General of army  (is itself convex) 
Colonel of regiment  (is itself locally convex) 
Dihedral angles 

Confer  
External links 
As abstract polytope teddi is isomorph to targi, thereby interchanging the roles of pentagons and pentagrams.
Incidence matrix according to Dynkin symbol
xfo3oox&#xt → height(1,2) = sqrt[(3+sqrt(5))/6] = 0.934172 height(2,3) = 1/sqrt(3) = 0.577350 ({3}  pseudo f{3}  dual {3}) o..3o..  3 * *  2 1 0 0  1 2 0 0 .o.3.o.  * 3 *  0 1 2 0  0 2 1 0 ..o3..o  * * 3  0 0 2 2  0 1 2 1 +++ x.. ...  2 0 0  3 * * *  1 1 0 0 oo.3oo.&#x  1 1 0  * 3 * *  0 2 0 0 wedges .oo3.oo&#x  0 1 1  * * 6 *  0 1 1 0 ... ..x  0 0 2  * * * 3  0 0 1 1 +++ x..3o..  3 0 0  3 0 0 0  1 * * * xfo ...&#xt  2 2 1  1 2 2 0  * 3 * * ... .ox&#x  0 1 2  0 0 2 1  * * 3 * ..o3..x  0 0 3  0 0 0 3  * * * 1
© 20042015  top of page 