How can you divide an angle into three equal angles using only a straightedge and compass?

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How can you divide an angle into three equal angles using only a straightedge and compass?

2007-04-22 07:49:41 · 3 answers · asked by East Ender 2 in Science & Mathematics ➔ Mathematics

3 answers

You cant!

http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Trisecting_an_angle.html

2007-04-22 08:30:15 · answer #1 · answered by welcome news 6 · 0⤊ 0⤋

Draw a large curve from the origin of the angle.
Use trial and error to mark 2 lines along the curve from each end until the distance between the marked lines is equal to the scribed distance.

2007-04-22 09:42:41 · answer #2 · answered by Anonymous · 0⤊ 0⤋

This is not possible except for some particular value of the angle.

2007-04-22 08:29:47 · answer #3 · answered by santmann2002 7 · 0⤊ 0⤋