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Mathematics 20 Online
OpenStudy (anonymous):

In this rectangular box, EF = 16, FD = 5, and DB = 30. Find AF. https://media.education2020.com/evresources/2004-04-01-02-00_files/i0310000.jpg

OpenStudy (anonymous):

|dw:1405398248030:dw| get AD |dw:1405398370454:dw| get AF and it's done by Pythagoras's theorem.

OpenStudy (anonymous):

@Nickman97 if you didn't get anything tell me :D

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