# Area Related to Circles

Subject matter experts of JagranJosh have developed a chapter wise practice sets as per the relevancy of the chapter in the board exam. This practice set contains 15 questions with detailed explanations on “Chapter: Area Related to Circles” of Mathematics.

• Q1.The area of the sector of a circle of radius r and central angle θ is:

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• Q2.An arc of a circle is of length 5π cm and the sector it bounds has an area of . The radius of circle is:

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• Q3.A sector is cut from a circle of radius 21 cm. The angle of sector is 150°. The area of sector is:

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• Q4.A chord AB of a circle of radius 10 cm makes a right angle at the centre of the circle. The area of major segment is:

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• Q5.A horse is tied to a pole with 56 m long string. The area of the field where the horse can graze is:

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• Q6.The circumferences of two circles are in the ratio 2 : 3. The ratio of their areas is:

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• Q7.Area enclosed between two concentric circles is . If the radius of outer circle is 21 cm, then the radius of inner circle is:

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