GeoGebra
GeoGebra
Home
News Feed
Resources
Profile
People
Classroom
App Downloads
Incircle, Excircles, and the 9-Point Circle
Author:
Steve Phelps
Topic:
Circle
,
Circumcircle or Circumscribed Circle
,
Incircle or Inscribed Circle
,
Triangles
There are four circles tangent to three sides of a triangle...
GeoGebra
And one circle tangent to all four circles.
GeoGebra
New Resources
Is it Isosceles?
Rings of circles
Cube of a Binomial - Volume Model
Wallace-Simson Line, Orthopole, and Deltoid
Polar Reciprocation
Discover Resources
Re ex 6 21
Angle Bisector Theorem Exploration
The Roots of Unity
Incenter
Hình 2.29 trang 56
Discover Topics
Normal Distribution
General Quadrilateral
Similarity Transformation or Similarity
Cone
Straight Lines