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    In a circle with centre O and radius 1cm, an arc AB makes an angle of 60 degrees at O. Let R be the region bounded by the radii OA,OB and the arc AB. If C and D are two points on OA and OB respectively, such that, OC = OD and the area of triangle OCD is half that of R, then the length of OC,in cm is

    newtest 20th Sep, 2019
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    Answer (1)
    ruchika.chauhan Expert 20th Sep, 2019

    The length of OC is

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