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  1. #1
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    question

    find the area of the largest equilateral triangle that can be inscribed in a circle whose diameter is 20 cm.
    PLEASE CAN YOU ANSWER NOW!
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by queennie View Post
    find the area of the largest equilateral triangle that can be inscribed in a circle whose diameter is 20 cm.
    PLEASE CAN YOU ANSWER NOW!
    519.615 sq cms.

    Oppsss... that's for 20 cm radius, divide by 4 for 20 cm diameter ~= 129.9 sq cm

    But why??

    CB
    Last edited by CaptainBlack; May 27th 2009 at 06:30 AM.
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  3. #3
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    Hello, queennie!

    The Captain used 20 as the radius.


    Find the area of the largest equilateral triangle that can be inscribed
    in a circle whose diameter is 20 cm.

    PLEASE CAN YOU ANSWER NOW!

    Yes . . . 75\sqrt{3} \:\approx\:129.9\text{ cm}^2

    Any idea about WHY?

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