List K
External Centers of Similitude
Points available in the Kimberling's Encyclopedia ETC.
The ETC version: The 10200 points version of 2016.
The "Discoverer" database version: October 2013.
Last update: 2016-11-02
  1. The External Center of Similitude of the Circumcircle of the Outer Grebe Triangle and the Nine-Point Circle of the Outer Grebe Triangle is the X(5870).
  2. The External Center of Similitude of the Circumcircle of the Outer Grebe Triangle and the Excentral Circle of the Outer Grebe Triangle is the X(3640).
  3. The External Center of Similitude of the Circumcircle of the Outer Grebe Triangle and the Half-Moses Circle of the Outer Grebe Triangle is the X(6).
  4. The External Center of Similitude of the Incircle of the Outer Grebe Triangle and the Inner Johnson-Yff Circle of the Outer Grebe Triangle is the X(5870).
  5. The External Center of Similitude of the Incircle of the Outer Grebe Triangle and the Outer Johnson-Yff Circle of the Outer Grebe Triangle is the X(5870).
  6. The External Center of Similitude of the Nine-Point Circle of the Outer Grebe Triangle and the Tangential Circle of the Outer Grebe Triangle is the X(1160).
  7. The External Center of Similitude of the Nine-Point Circle of the Outer Grebe Triangle and the Sine-Triple-Angle Circle of the Outer Grebe Triangle is the X(6276).
  8. The External Center of Similitude of the Antimedial Circle of the Outer Grebe Triangle and the Nine-Point Circle of the Outer Grebe Triangle is the X(5860).
  9. The External Center of Similitude of the Inner Johnson-Yff Circle of the Outer Grebe Triangle and the Outer Johnson-Yff Circle of the Outer Grebe Triangle is the X(5870).
  10. The External Center of Similitude of the Cosine Circle of the Outer Grebe Triangle and the Nine-Point Circle of the Outer Grebe Triangle is the X(6280).