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Circle Geometry Problem and Solution for GMAT

Updated on September 16, 2012

These are typical questions are being asked in GMAT exam of Quantitative section as part of Geometry questions.

Please note that link for the solution is provided at the bottom of the page.


O centered circle inscribed in to ABCD square. Another small circle has been inscribed on the right top corner of the ABCD square. What is the radius of the small circle?


What is radius of the small circle?


O centered circle is inscribed into the right triangle ABC. What is the radius of the circle?


ABC is an equilateral triangle. Two circles are inscribed in to the ABC triangle as shown in the picture. What is the radius of the circle?


Each side of square ABCD is 10 cm. Arc BD is C centered circle and Arc DB is A centered circle. What is the striped area?

Detailed solution and explanation for the above question is available in this link


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      xandra credo 5 years ago


    • MazioCreate profile image

      MazioCreate 5 years ago from Brisbane Queensland Australia

      This certainly had the grey matter ticking along. Been many years since I've attempted this type of problem. Voted up!