Can someone find $x$ in the figure? I tried to solve it, but failed.
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what did you got ? 20? – Steven01123581321 Jan 06 '20 at 08:27
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@Steven31415 I didn't get any value. Even, now I am wondering if it can be solved. – Danny_Kim Jan 06 '20 at 08:36
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@Danny_Kim the position of all the vertices is uniquely determined by the given angles, so there is a unique solution, so it can be solved. It seems however that the solution is not so easy to find by finding triangles whose angles sum to 180... – wimi Jan 06 '20 at 08:39
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1It's at the top of the upper left triangle. – David Mitra Jan 06 '20 at 08:56
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reminds me of this: https://i.sstatic.net/zUTW9.jpg – lhf Jan 06 '20 at 10:32