Difference between revisions of "1987 OIM Problems/Problem 6"
(Created page with "== Problem == Let <math>ABCD</math> be a planar convex quadrilateral, <math>P</math> and <math>QQ</math> are points of <math>AD</math> and <math>BC</math> respectively such th...") |
(No difference)
|
Revision as of 12:57, 13 December 2023
Problem
Let 
be a planar convex quadrilateral, 
and 
are points of 
and 
respectively such that:
![\[\frac{AP}{PD}=\frac{AB}{DC}=\frac{BQ}{QC}\]](http://latex.artofproblemsolving.com/5/f/d/5fd51a80cf4d97e0022bf5bddfb94e875038c495.png)
Prove that the angles that are formed between line 
and lines 
and 
are equal.
Solution
This problem needs a solution. If you have a solution for it, please help us out by adding it.
