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A triangle with its external angle bisectors
Forfatter
Idan Tal
Given triangle ABC, its external angle bisectors form the triangle GHI. What can one say about GHI?
GeoGebra
Nye Materialer
Parallel Line Image Maker
Which Quadrilateral is Which?
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Steel Chair
Graphs of Rational Expressions
Opdag Ressourcer
A generalization of the right triangle altitude theorem
Algebraic formula type-2
(1) 2. The angle of the centre of a circle is twice...
Guess the Incenter!
SSA exploration: Why doesn't it work?
Udforsk emner
Rektangel
Parametriske Kurver
Omskreven cirkel
Omkreds
Logaritme