Question
Hint
Solution
Origin/Difficulty
2007 AMC 10B, #11/ Hard - 6.84% of answering students correctly answered the question
Classifications
NCTM Standard: Geometry -- Analyze characteristics and properties of two- and three-dimensional geometric shapes and develop mathematical arguments about geometric relationships.
Mathworld.com Classification: Geometry > Plane Geometry > Triangles > Special Triangles > Other Triangles > Isosceles Triangle