The Product of the Inradius and Three Exradii
Initializing live version

Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
Let ABC be a triangle with area and let
be its inradius. Let
,
, and
be the exradii of the excircles opposite A, B, and C, respectively. Then
.
Contributed by: Jay Warendorff (March 2011)
Open content licensed under CC BY-NC-SA
Snapshots
Details
detailSectionParagraphPermanent Citation
"The Product of the Inradius and Three Exradii"
http://demonstrations.wolfram.com/TheProductOfTheInradiusAndThreeExradii/
Wolfram Demonstrations Project
Published: March 7 2011