don steward
mathematics teaching 10 ~ 16

Sunday, 29 April 2018

3D geometry: truncated polyhedra

it can be interesting to explore what happens to the numbers of faces, edges, and vertices of solids when you (symmetrically) cut off the corners - less than half way along each edge

the new F, E, V numbers can all be related just to the old number of edges
reasons for these relationships can be considered

powerpoint: truncated polyhedra

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