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Marion Walter's theorem states that
the area of the central hexagonal region HIJKLO determined by
trisection of each side of a triangle ABC and connecting the
corresponding points with the opposite vertex is given by 1/10
the area of the original triangle.
You can
interact with the figure below by dragging the red points and
lines.
This page is best viewed with Firefox or Internet Explorer and at a resolution of 1024 x 768 or higher.
Requires: Flash Player, Java JRE 1.3 or higher and JavaScript.
Dynamic Geometry: You can alter the figure above
dynamically in order to test and prove (or disproved)
conjectures and gain mathematical insight that is less
readily available with static drawings by hand.
This page uses the
TracenPoche
dynamic geometry software and requires
Adobe Flash player 7 or higher.
TracenPoche is a project of Sesamath, an association of French
teachers of mathematics.
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