Develop spatial imagination
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Truncated triangular pyramid
At the base of the pyramid is a regular triangle (all sides are equal, the angles between the base sides are 60 degrees). The height of the pyramid is exactly at the center of the triangular base.
Height = 35
this pyramid can be inscribed in a truncated cone with base radii r = 35 mm and R = 55 mm
Height = 50
this pyramid can be inscribed in a truncated cone with base radii r = 25 mm and R = 50 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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