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Tangent Circles, Theorems and Problems: Table of Content
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Mascheroni Construction with compass
alone. Midpoint of a segment.
Intersecting circles.
Tangent circles. 

Proposed Problem
213. Triangle, Incircle, Inradius, Semicircles, Common Tangents. 

Proposed Problem
190. Tangent circles, Tangent chord, Perpendicular, Distance. 

Proposed Problem
180. Externally
Tangent circles, Common External Tangents, Areas. 

Proposed Problem
145.
Four Triangles, Incircle, Tangent and Parallel to Side, Incenters, Circumcenters.
Tangent circles. 

Proposed Problem
143. Four Triangles, Incircle, Tangent and Parallel to Side, Circumradii.
Tangent circles. 

Proposed Problem
100. Circle Area, Archimedes' Book of Lemmas.
Tangent circles.


Proposed Problem 99: Circle Area, General Extension to Pythagoras' Theorem.


Circumcircles or circumscribed circle
Proposed Problem
94. Similar Triangles, Circumcircles,
Circumradii.
Tangent circles. 
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