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How many isosceles triangles appear in this figure?

How many isosceles triangles appear in this figure?-example-1

1 Answer

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Though it looks like BE ≅ CE ≅ AD and BA ≅ BX ≅ DX, these congruencies are not indicated either on the drawing or in the problem statement. Thus they cannot be relied upon.

There is exactly 1 isosceles triangle in the figure.
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