SOLUTION: find the length of the diagonal brace used to reinforce the barn door 12ft by 5ft

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Question 622191: find the length of the diagonal brace used to reinforce the barn door 12ft by 5ft
Answer by Alan3354(69443) About Me  (Show Source):
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find the length of the diagonal brace used to reinforce the barn door 12ft by 5ft
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d%5E2+=+12%5E2+%2B+5%5E2