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Math Help - circumference of the circle

  1. #1
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    circumference of the circle

    this one is hard..

    find the circumference of the circle circumscribing a rectangle with sides 8 and 6 m respectively
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  2. #2
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    Quote Originally Posted by aeroflix View Post
    this one is hard..

    find the circumference of the circle circumscribing a rectangle with sides 8 and 6 m respectively
    1. Draw a sketch.

    2. The diameter of the circle is a diagonal of the rectangle.

    3. Use Pythagorean theorem to calculate the length of the diagonal.

    4. Calculate the circumference c of the circle: c = 2 \pi r
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