ITS MODIFICATIONS. 125 



Class/. Obtuse solid angles replaced by three 

 planes resting on the primary planec. 



The new figures would be contained within 24 

 isosceles triangular planes. 



Class g. Obtuse solid angles replaced by three 

 planes resting on the primary edges. 



The new figures would be contained within 24 

 trapezoidal planes. 





Class //. Obtuse solid angles replaced by six 

 planes. 



The new figures would be contained within 48 



triangular planes. 



.- _,, 







Class t. Edges replaced by tangent planes. 

 The new figures would be contained within 24 

 trapezoidal planes. 



