Question 99
A parallelogram $ABCD$ with $|AB| = 2|BC|$ is given. Determine all the lines that divide the parallelogram into two tangential quadrilaterals. (Jaroslav Švrček)
MathNet 2015-part-02 — 191 problems (EN–VI) Question 99
Math Olympiad Vault · MathNet 2015-part-02 — 191 problems (EN–VI)