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Do you know how to solve this problem plz help with detail explanation

Do you know how to solve this problem plz help with detail explanation-example-1
User Kienz
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1 Answer

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First find BE using pythogorean theorem in triangle BEF.
Then draw a line from E to C. Now you have BEC.
Find EC from BEC.
Then you could easily find the required answer ED from triangle CDE.
User Ghollah Kioko
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