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An Inscribed Circle

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Author: Annie Fetter
Description: teacher support active problem Geometry, difficulty level 2. Find the radius of a circle inscribed in a right triangle with legs of 5 units and 12 units.
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Problem page: http://mathforum.org/librarypow/puzzles/index2.ehtml?puzzle=3399
Support page: http://mathforum.org/pow/support/geopow/20050502geo.teacher.html
Solution page: Problem #3399

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