幾合作圖
940232 沈博彥
1.Any Two Circles on a Sphere are Perspective
2.Center of a Circle Under Stereographic Projection-1
3.Center of a Circle Under Stereographic Projection-2
4.Circle Tangent to Two Given Circles
7.Construction of a Pentagonal Cupola starting with a Dodecahedron-1
8.Construction of a Pentagonal Cupola starting with a Dodecahedron-2
9.Construction of a Rhombic Dodecahedron from a Cube
10.Construction of a Rhombic Triacontahedron from a Dodecahedron
11.Construction of a Triangular Cupola starting with a triangle-1
12.Construction of a Triangular Cupola starting with a triangle-2
17.Dodecahedron plus Icosahedron
18.Five Cubes in a Dodecahedron
19.Five Octahedra in an Icosidodecahedron
20.Five Tetrahedra in a Dodecahedron
22.Metabidiminished Icosahedron
28.Square Gyrobicupola as Convex Hull of Six Squares
31.the tangent line along the trace-1
32.the tangent line along the trace-2
33.Triangular Gyrobicupola as Convex Hull of Tetrahedra
