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Math Help - Find the radius of a circle which inscribes a rhombus of side a and angle A.

  1. #1
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    Find the radius of a circle which inscribes a rhombus of side a and angle A.

    Find the radius of a circle which inscribes a rhombus of side a and angle A.
    Last edited by mr fantastic; October 18th 2010 at 05:24 PM. Reason: Re-titled.
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    Diameter of that circle is equal to the height of a rhombus. Draw a line frome one of the vertices perpendicular to the oposite side. Thats the height and also the diameter. Notice the right-angle triangle. You can determine the diameter (twice the radius) using the trigonometric relations for the right-angle triangle.
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    Hello, rickrishav!

    Find the radius of a circle which inscribes a rhombus of side a and angle A.

    A rhombus inscribed in a circle is a square.
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