IMO Shortlist 1985 problem 20


Kvaliteta:
  Avg: 0.0
Težina:
  Avg: 6.0
Dodao/la: arhiva
April 2, 2012
LaTeX PDF
A circle whose center is on the side ED of the cyclic quadrilateral BCDE touches the other three sides. Prove that EB+CD = ED.
Source: Međunarodna matematička olimpijada, shortlist 1985