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Teorema di Feuerbach
Author:
Marcello PEDONE
Il cerchio inscritto è tangente internamente al cerchio dei nove punti e questo è tangente esternamente ai tre cerchi ex-inscritti.
GeoGebra
New Resources
Graph of y = ax² + bx + c
Traffic Cone
Drunk Parabola
z`]]
Graphical solution of ax² + bx + c = k
Discover Resources
dot-product
Measuring velocity
Triangle - Area and Perimeter
การบวกจำนวนเต็มบวกกับจำนวนเต็มลบ
การลบจำนวนเต็ม
Discover Topics
Circumcircle or Circumscribed Circle
Equilateral Triangles
Parallelogram
Indefinite Integral
Normal Distribution