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Is it possible to trisect any angle using only a compass and straightedge?

April 26, 2017compass possible straightedge

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Is it possible to trisect any angle using only a compass and straightedge?

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No it is not. THe problems of trisecting an angle using an unmarked straightedge and compass and solving a cubic equation are the same and it is impossible to solve a cubic equation in a 2D plane.