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| Title: | Mathematics at DEC |
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| Moderator: | RUSURE::EDP |
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| Created: | Mon Feb 03 1986 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 2083 |
| Total number of notes: | 14613 |
1791.0. "Crux Mathematicorum 1862" by RUSURE::EDP (Always mount a scratch monkey.) Mon Sep 20 1993 14:06
Proposed by Toshio Seimiya, Kawasaki, Japan.
ABC is an isosceles triangle with AB=AC and angle A = 120� (120
degrees). Let P, Q be points on sides AB, AC respectively so that PQ
is tangent to the incircle of triangle ABC. Prove that BP*CQ is equal
to twice the area of quadrilateral PBCQ.
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