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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
Monge's Theorem
apec
Constructing the Copy of an Angle + Angles Activities
GeoGebra around GeoGebra
Constructing an Isosceles Triangle with Given Side + Activities
Discover Resources
Άσκηση Γεωμετρίας 21 (λύσις)
test
Project 1 tiny tris
Fundamental Theorem quiz reinforce
Algebra Week 12 Day 2
Discover Topics
Scalene Triangles
Ratios
Linear Equations
Inequalities
Bar Chart or Bar Graph