See complete Problem 159

Distances from the Circumcenter to the Incenter and the Excenters. Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

## Saturday, August 9, 2008

### Elearn Geometry Problem 159

Labels:
circumcenter,
circumradius,
distance,
excenter,
incenter,
Problem 155,
Problem 157,
Problem 158,
Problem 159,
triangle

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R²-2Rr+R²+2Rr1+R²+2Rr2+R²+2Rr3

ReplyDelete=4R²+2R(r1+r2+r3-r)

=4R²+2R(r+4R-r)

=12R²

.-.

http://ahmetelmas.wordpress.com/2010/05/15/geo-geo/

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