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Search: Posts Made By: jay_shark
Forum: Science, Math, and Philosophy 08-06-2007, 12:13 PM
Replies: 1
Views: 78
Posted By jay_shark
Circle Geometry re-visited .

Given a circle with radius R and an inscribed triangle ABC with inradius r , show that r= 4Rsin(A/2)sin(B/2)sin(C/2) .

The shorter the solution , the better !!
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