CAT Practice : Coordinate Geometry

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Radius of the circle inscribed inside a semi - circle

Inscribed Circles

    Q.37: A circle is inscribed in a semi-circle as shown:-

    The radius of the circle is:-

 

  • Correct Answer
    Choice (D).

Detailed Solution

Area of semicircle =) = 0.5 π

Area of circle should be less than the area of semicircle:-

Area =

Area =

Area =

Area =

∴ d) Answer



Correct Answer: (D). =



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Geometry is probably the most vital topic as far as CAT preparation is concerned. Geometry sets the stage for Trigonometry, Cogeo and Mensuration as well.