| Vertices: | 11 (10[3] + 1[10]) |
| Faces: | 11 (10 isosceles triangles + 1 regular decagon) |
| Edges: | 20 (10 short + 10 long) |
| Symmetry: | 10-fold Pyramidal (C10v) |
| Dual Solid: | Decagonal Pyramid (itself) |
| (values below based on edge-scribed radius = 1) |
| Short Edge (10): | 2*sqrt(10*(sqrt(10*(5−sqrt(5)))−5))/5 | ≈0.64163680840966230871 |
| Long Edge (10): | 2*sqrt(5*(15+5*sqrt(5)
+4*sqrt(5*(5+2*sqrt(5)))))/5 | ≈6.554874723252759115003 |
| Edge-scribed Radius: | 1 |
| Volume: | 40*(6+2*sqrt(5)−sqrt(2*(25+11*sqrt(5))))/3 | ≈6.8339042062461106562 |