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BP898 Can fold into tetragonal disphenoid ("isosceles tetrahedron") vs. cannot.
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COMMENTS

Which two sides are the long sides and which side is the short side, or equivalently which angles are the wider angles and which angle is the narrower angle, is the only relevant information to consider for each triangle. Triangles are all assumed isosceles and congruent to one another.


All examples in this Problem feature four of these triangles connected by corners and/or edges.

CROSSREFS

BP897 was conceived as a false solution for this.

Adjacent-numbered pages:
BP893 BP894 BP895 BP896 BP897  *  BP899 BP900 BP901 BP902 BP903

KEYWORD

hard, precise, allsorted, notso, math, preciseworld

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AUTHOR

Molly C Klenzak

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