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Thread: The Pythagorean Theorem

  1. #1
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    The Pythagorean Theorem

    1. calculate the area of the triangular fields, and the length of perimeter fencing required to secure the site.

    AB= 20m, Angle ABC= 60 degrees, Angle ACB= 20 degrees and angle BCD= 60 degrees.


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  2. #2
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    Re: The Pythagorean Theorem

    A triangle has three corners, which I assume you are calling A, B and C. What is D? And what does this have to do with the Pythagorean Theorem?
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  3. #3
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    Re: The Pythagorean Theorem

    I'm sorry mate, it was supposed to be trigonometry, and it basically 2 triangles together, so AB is one side, ABD is the long side and DBC connects back to A of that makes any sense. The Pythagorean Theorem-img_0575.jpg
    I've attached the questions above
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  4. #4
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    Re: The Pythagorean Theorem

    Problem also cited by the OP in this thread ...

    Transpositioning techniques to solve equations and Formula
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  5. #5
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    Re: The Pythagorean Theorem

    You have mislabeled your diagram - angle BAC = 60, but you labeled angle CBD as 60. It also looks like you labeled angle BCA as 70 - why?

    First determine angle BAC from sum of angles of triangle ABC = 180.
    Then determine length |BC| using law of sines, since you know angles BAC and ACB, and length |AB|.
    Now you can find lengths |AB| and |CD| from basic trig, given angles and length of the hypotenuse |BC|
    Finally for triangle ABC you can use the base length of AB and height of BD to calculate its area.
    Last edited by ChipB; Nov 11th 2016 at 06:11 AM.
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  6. #6
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    Re: The Pythagorean Theorem

    Quote Originally Posted by par1996 View Post
    1. calculate the area of the triangular fields, and the length of perimeter fencing required to secure the site.

    AB= 20m, Angle ABC= 60 degrees, Angle ACB= 20 degrees and angle BCD= 60 degrees.

    If you post such a messy problem, and are unable to see IT IS messy,
    then you require serious classroom help; even a face to face tutor.
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    Re: The Pythagorean Theorem

    Hi DenisB, the reason the question was wrong was because I didn't upload the photo before I posted this thread, and it's not messy once you see the photo you'll understand it much better and clearer
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  8. #8
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    Re: The Pythagorean Theorem

    Well, if you now understand in full, show
    your work so we can help you by checking it.

    That's the way math help sites work,
    Thanks from topsquark
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