Constructions (accurate drawings) can be made using a ruler, a pair of compasses and a pencil. A line which cuts an angle into two equal side angles is called an angle bisector. In geometry a ...
Summary We prove the next generalization of the Steiner-Lehmus theorem: if two equal cevians intersect with each other on the angle bisector of the third triangle vertex, then the triangle is ...
They form a partially hinged dissection. Objects MA.304723.755, MA.304723.760, and MA.304723.804 form model 6TQ (angle bisectors of a triangle). A drawing for this model, dated April 23, 1932, is in ...
Description This model of a part of a hinged dissection consists of two triangles hinged at a common vertex. Objects MA.304723.755, MA.304723.760, and MA.304723.804 form model 6TQ (angle bisectors of ...
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