2006 Romanian NMO Problems/Grade 8/Problem 1

Revision as of 22:21, 15 August 2012 by L Bob l (talk | contribs) (Solution)

Problem

We consider a prism with 6 faces, 5 of which are circumscriptible quadrilaterals. Prove that all the faces of the prism are circumscriptible quadrilaterals.

Solution

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