| Construct a regular tetrahedron together with sphere tangent to its edges. |
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Mathematical Experiment 6
| Construct a regular tetrahedron together with sphere tangent to its edges. |
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| Construct the part of the sphere in the above problem inside the tetrahedron |
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| Construct a cube together with sphere tangent to its edges. |
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| Construct the part of the sphere in the above problem inside the cube. |
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| Arrange six identical "caps" of a sphere as thus: |
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