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#1 2018-02-13 05:33:02

msbiljanica
Member
Registered: 2012-01-18
Posts: 18

propotion angle - trisection

https://www.geogebra.org/m/CukhmEVy

straightedge slip on the point B  - line i

divider  FIG , slides on straightedge , after slipping point F straighte line BC , point  G describes lokus1 

section lokus1 and line k point J , when changing the angle, the point J must be manually set to the intersection

construction of regular polygon is possible by means of the proportion of the angle

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