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Angle Measures (Posted on 2006-07-05) Difficulty: 3 of 5
What are the measures of the apex angles of all isosceles triangles with circumradius 9 and inradius 4?

(As a reminder, the circumradius is the radius of the circumscribed circle, and the inradius is the radius of the inscribed circle.)

See The Solution Submitted by Bractals    
Rating: 2.0000 (2 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re: An almost complete estimated solution (spoiler)Richard2006-07-06 17:12:09
SolutionAn almost complete estimated solution (spoiler)Grate Guy2006-07-06 16:16:48
Using a FormulaRichard2006-07-05 22:00:40
SolutionA jump to the peak (spoiler)Dej Mar2006-07-05 19:45:07
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