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anonymous

  • one year ago

The picture shows a barn door: A barn door has two parallel bars. A support AB runs across the diagonal between the two parallel bars. The angle made by the diagonal with the parallel bar on top is 45 degrees. The distance between the two parallel bars is 7 feet. What is the length of the support AB?

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  1. anonymous
    • one year ago
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    help ?

  2. NathalyN
    • one year ago
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    I do you have a diagram???

  3. anonymous
    • one year ago
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  4. NathalyN
    • one year ago
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    okay give me a sec let me see the problem!!!

  5. anonymous
    • one year ago
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    ok thank you

  6. NathalyN
    • one year ago
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    tan(angle) = opp/adj tan(45) = x/4 4*tan(45) = x x = 4*tan(45) So choice D

  7. anonymous
    • one year ago
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    there is no 4

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