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Math Help - How to Solve... A = 1/2(9√3)(108) ...?

  1. #1
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    How to Solve... A = 1/2(9√3)(108) ...?

    I've been trying to figure out how to solve this problem for awhile, but can't figure it out. I don't know how to handle the Radical. I have the answer to th eproblem, but don't know how to solve it.

    A = 1/2(9√3)(108)


    Thank you
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  2. #2
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    Re: How to Solve... A = 1/2(9√3)(108) ...?

    Quote Originally Posted by redboy3 View Post
    I don't know how to handle the Radical. I have the answer to th eproblem, but don't know how to solve it.
    A = 1/2(9√3)(108)

    As written it is A=\frac{1}{2}(9\sqrt{3})(108).

    But I don't think that is what you mean. Is it?
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    Re: How to Solve... A = 1/2(9√3)(108) ...?

    Well, what's the process to get to the answer? I don't know what the process is...I would know how to solve it if there wasn't a radical
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    Re: How to Solve... A = 1/2(9√3)(108) ...?

    Quote Originally Posted by redboy3 View Post
    Well, what's the process to get to the answer? I don't know what the process is...I would know how to solve it if there wasn't a radical
    Well if that is what is
    A=\frac{1}{2}(9\sqrt{3})(108)={486\sqrt{3}.

    That is as simple as it gets,
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  5. #5
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    Re: How to Solve... A = 1/2(9√3)(108) ...?

    The Answer Key to my Textbook is telling me the answer is "841.8"
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    Re: How to Solve... A = 1/2(9√3)(108) ...?

    Quote Originally Posted by redboy3 View Post
    The Answer Key to my Textbook is telling me the answer is "841.8"
    Well the answer key is close to correct
    {486\sqrt{3}=841.776692478474.

    That is just fifteen decimal places.
    You see \sqrt{3} is irrational, so we can never get an exact answer in decimal form.
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  7. #7
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    Re: How to Solve... A = 1/2(9√3)(108) ...?

    in order to turn 486√3 into 841, what did you multiply?

    Thank you for your help, so far i understand everything but in order to turn 486√3 into 841, what did you multiply?
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    Re: How to Solve... A = 1/2(9√3)(108) ...?

    I guess it's too complex to turn 486√3 into 841 without a Calculator? Atleast that's what people are telling me
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