Math Education, Triangle Centers. Online Geometry. Activate
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Online Learning. Site created and maintained by Antonio Gutierrez.
Spieker
Center
The Spieker center of a triangle ABC
is the incenter S of the medial triangle A'B'C' of the triangle
ABC.
The Spieker center is also the
centroid of the perimeter of the original triangle ABC
The medial triangle A'B'C' is formed
by joining the midpoints of the sides of a triangle ABC.