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Truncated ninth-angle pyramid

Truncated ninth-angle pyramid
At the base of the pyramid is the right ninth-corner (all sides are equal, the angles between the sides are 140 degrees).
 
The height of the pyramid is exactly in the center of the nine-cornered base.
Truncated ninth-angle pyramid
net truncated ninth-angle pyramid
 

Geometric dimensions of the finished pyramid (mm):
Height = 35

this pyramid can be inscribed in a truncated cone with base radii r = 35 mm and R = 55 mm

Truncated ninth-angle pyramid
net truncated ninth-angle pyramid
 

Geometric dimensions of the finished pyramid (mm):
Height = 50

this pyramid can be inscribed in a truncated cone with base radii r = 25 mm and R = 50 mm

Truncated ninth-angle pyramid
net truncated ninth-angle pyramid
 

Geometric dimensions of the finished pyramid (mm):
Height = 80

this pyramid can be inscribed in a truncated cone with base radii r = 20 mm and R = 50 mm

 

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