math(Please help!!!)

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A ladder is leaning against a house and is forming a 60 degree angle with the ground. If the top of the ladder is 18 feet off of the ground, how long is the ladder? Leave your answer in exact form.

  • math(Please help!!!) -

    i don't know

  • math(Please help!!!) -

    sin 60 = opposite/hypotenuse
    opposite is 18
    solve for hypotenuse

  • math(Please help!!!) -

    ummm sorry

  • math(Please help!!!) -

    the answer would be 20.78 but i don't know how to put that in exact form...sorry

  • math(Please help!!!) -

    Ha you must be grade 8 cause I got it my text book oh in back it says 4 m

  • math(Please help!!!) -

    i d k

  • math(Please help!!!) -

    sin 60 degrees. 18/hyp
    x.sin 60=0.8660
    18.(0.8660)=x
    15.588m = x

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