Inscribing Four Circles in a Triangle
Initializing live version

Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
Inscribe a circle in a triangle; let denote its radius. Construct tangents to the inscribed circle parallel to the sides of the triangle. Construct inscribed circles within each of the smaller triangles with radii
,
, and
. Then
.
Contributed by: Jay Warendorff (March 2011)
Open content licensed under CC BY-NC-SA
Snapshots
Details
Permanent Citation