A Trigonometric Dilemma in a Triangle

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A Trigonometric Dilemma in a Triangle
Anonymous Christian
Apr 2, 2018
Math Olympiad
Comments Off on A Trigonometric Dilemma in a Triangle
Given a triangle ABC with AB = AC, BC = AD and angle (BAC) = 20. Find angle(ADB).

Question & a possible solution is in Images attached.

Other (better solutions) are possible but that’s what I got.

anonymous-christian

Jonathan Ramachandran is founder at AnonymousChristian.org which serves as a Christian Blog discussing the Greater Hope of Biblical Christian in Christ Alone. He is also an IMO (International Math Coach) and a featuring Guitarist for many bands.