Page 78 - NUMINO Challenge_D1
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3 Explain why there are only three regular polyhedrons with equilateral
triangles as side faces.
4 The following figure is a regular tetrahedron. The dots in the middle of
3 edges passing through 1 vertex are connected to make a shape. If
this process is repeated for all 4 vertices, what is the name of the solid
figure made inside the tetrahedron?
75Geometry
triangles as side faces.
4 The following figure is a regular tetrahedron. The dots in the middle of
3 edges passing through 1 vertex are connected to make a shape. If
this process is repeated for all 4 vertices, what is the name of the solid
figure made inside the tetrahedron?
75Geometry
