Tomahawk (geometry)

Tomahawk is a geometric "Tool", which consists of a semi-circle and two line segments. The basic form can be constructed with ruler and compass. With a Tomahawk can be three share an angle. This does not contradict the insolubility of the classical problem, since the required translation and rotation of the constructed Tomahawks goes into the necessary position over the allowed there construction methods.

Trisection of an angle with a tomahawk. The handle makes up a third, and the blue line is another.

Template ( schematic diagram) for trisection of angles of 90 ° ( red) to 180 ° (blue). Tip and reflex angles can be reduced to this range.