MathDB
MMO 198 Moscow MO 1951 ruler and protractor construction

Source:

August 7, 2019
protractorgeometrygeometric constructionpoint construction

Problem Statement

* On a plane, given points A,B,CA, B, C and angles ∠D,∠E,∠F\angle D, \angle E, \angle F each less than 180o180^o and the sum equal to 360o360^o, construct with the help of ruler and protractor a point OO such that ∠AOB=∠D,∠BOC=∠E\angle AOB = \angle D, \angle BOC = \angle E and ∠COA=∠F.\angle COA = \angle F.
Back to ProblemsView on AoPS