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Here's a simple looking geometry question, but I can't seem to solve it.

But according to scale models, there is a unique answer for BC.

Equations with Pythagoras' theorem or cosine rule always seems to end up in an illegible pile of mess. :yuck:

Does anyone has any idea how to go about solving the question?

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# Deceiving Simple Geometry Question

**Physics Forums | Science Articles, Homework Help, Discussion**