Sunday, May 30, 2021

1712. Cyclologic Triangles

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Saturday, May 29, 2021

1711. A Centroid On Euler Line

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Friday, May 28, 2021

1710. Concurrent Circles

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1709. Coaxial Circles(3)

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Wednesday, May 26, 2021

1708. Coaxial Circles(2)

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Tuesday, May 25, 2021

1707. Coaxial Circles

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Monday, May 24, 2021

1706. Concurrent Euler Lines

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Sunday, May 23, 2021

1705. Extra-Kosnita Triangle and Orthocentric system

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Wednesday, May 19, 2021

1704. Concurrent Brocard Axes

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Tuesday, May 18, 2021

1703. Pro-Orthiac Triangles and Concurrent Euler Lines

- 3 comments:
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Sunday, May 16, 2021

1702. Nesbitt Conjugate of X(10)-Spieker Center respect to Kiepert Hyperbola

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1701. Lines to Lines

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Thursday, May 13, 2021

1700. A Conic Configuration

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1699. 8 Points Conic

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Wednesday, May 12, 2021

1698. Concurrent Circles and X(502)

- 2 comments:
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Tuesday, May 11, 2021

1697. A Circle Centered at NPC (X(5)).

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Monday, May 10, 2021

1696. Isodynamic Points on Circumcircle

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Saturday, May 8, 2021

1695. On Reflections of Lines

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Thursday, May 6, 2021

1694.

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Tuesday, May 4, 2021

1693. A Circle Centered at Incenter

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1988. Circumcenters On Euler Line

  Let ABC be a triangle with P, Q are two points on Euler line of ABC. A',B',C' are inverse images of A,B,C through circle diame...