New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    The area of a sector of a circle is 88cm² and the angle

    of the sector is 60º. Find the radius of the circle.
    A 2 √42cm Correct Answer Incorrect Answer
    B 8√42cm Correct Answer Incorrect Answer
    C 2 √31cm Correct Answer Incorrect Answer
    D 2 √21cm Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    The area of a sector of a circle = θ/360º × πr² =88 (60º/360 º) ×22/7 × r² = 88 r² = 28×6= 168 r = 2 √42cm

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