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The Apprehendable Angle

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Author: Annie Fetter
Description: Geometry, difficulty level 2. Triangle ABC is isosceles with a vertex angle (at the top) of 50 degrees. If D is on AC, E is on BC, and AD = BE, what is the measure of angle ADE?
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Problem page: /library/go.html?destination=1419
Solution page: Problem #1419

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