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September 3, 2015

Homework Help: math

Posted by Edna on Friday, November 30, 2012 at 11:50am.

Mrs. Jones is building a deck behind her house. Top 28 ft; Right 25 ft; Bottom 4 ft. What is the length of the unlabeled Left side of this deck?

Ans. 7 ft.
Book's explanation: 〖25〗^2-〖24〗^2=625-576=49=7
Where did they get 24 from? Thank you for your help!

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