c1 |
Brocard
points |
c2 |
Anticevian
triangle |
c3 |
Tripole |
c4 |
Circle tangent
to the circumcircle at a vertex and externally tangent to the incircle |
c5 |
Circle tangent
to the circumcircle at a vertex and internally tangent to the incircle |
c6 |
Circle through
two vertices and tangent to the incircle |
c7 |
Mannheim circle |
c8 |
Malfatti circles |
c9 |
Circle tangent
to the circumcircle at a vertex and tangent to the opposite side |
c10 |
Triangle having
its centroid at the incircle |
c11 |
Triangle knowing
the vertex A, the circumcenter O and the symmedian point K |
c12 |
Equilateral
triangle circumscribed to ABC |
c13 |
Triangle knowing
the vertex A, the line r joining A and B and the ninecircle c |
c14 |
Triangle having
its vertices on three concurrent lines r1, r2, r3 and as incenter I their
concurrence point |
c15 |
Triangles ABC
given A and B and such as the circle with diameter AB is tangent to the
incircle |
c16 |
Triangles inscribed
in ABC and similar to the pedal A'B'C' of a point P |
c17 |
Triangle ABC
similar to A'B'C', C being given and A, B in two given lines r, s |
c18 |
Two points
M, N isogonals with respect two triangles ABC and A'B'C' |
c19 |
Two tangent
circles with the same radius, one of them with center A and the other through
B and C |
c20 |
Triangle knowing
ra, rb, rc perpendicular bisectors of the sides |