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No, and the proof was provided by Wantzel in 1837.
Yes and the trisections will form 4 angles of 22.5
No
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As a general rule, no.
No, and the proof was provided by Wantzel in 1837.
Yes and the trisections will form 4 angles of 22.5
No
to construct an angle of 20 degrees all you have to do is to trisect an angle of 60degrees
That's a classic problem that's been around for a very long time.It's been proven that it's not possible to trisect any angle in generalwith those tools, although there are a few specific angles, like aright angle, for which it can be done.
To trisect a right angle form an equilateral triangle with one vertex at the right angle and then bisect that angle of the equilateral triangle. (It is impossible to trisect a general angle using only compass and straight edge - the right angle is a specific exception.)
Yes! It is! I'm not perfectly sure how, but my father has, in fact, done this.
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