(box: x-ray)  (F: faces)  (slider: perspective)  (image: L=rotate R=zoom)  (M: metrics)
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Triangular Bifrustum
Vertices:  9  (6[3] + 3[4])
Faces:8  (2 equilateral triangles + 6 isosceles trapezoids)
Edges:15  (6 short + 6 medium + 3 long)
Symmetry:  3-fold Prismatic  (D3h)
Dual Solid:  Elongated Triangular Dipyramid
(values below based on edge-scribed radius = 1)
Short Edge (6):  2*sqrt(3)/7    ≈0.49487165930539351244
Medium Edge (6):  8*sqrt(3)/7    ≈1.9794866372215740497
Long Edge (3):  2*sqrt(3)    ≈3.4641016151377545871
Edge-scribed Radius:  1
Volume:1368/343    ≈3.9883381924198250729