2018.3

Part of Champions Tournament Seniors - geometry

Problems(1)

<CDE=<BEF wanted, 2 parallelograms, AC=AD, AE=2CD

Source: Champions Tournament (Ukraine) - Турнір чемпіонів - 2018 Seniors p3

F

of the parallelogram

ACEF

lies on the side

BC

of parallelogram

ABCD

. It is known that

AC = AD

AE = 2CD

\angle CDE = \angle BEF

geometryparallelogramequal anglesequal segmentsChampions Tournament