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 10 questions with detailed explanations on “Chapter: Circles” of Mathematics.

Q8.A triangle ABC is drawn to circumscribe a circle of radius 4 cm such that the segments BD and DC into which BC is divided by the point of contact D are of lengths 8 cm and 6 cm respectively. Find the side AB.
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Q9.A triangle PQR circumscribes circle of radius r, such that angle Q = 900. PQ is 3 cm and QR is 4 cm . Find the radius of the circle.
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Q10.From given figure, find the perimeter of the quadrilateral DEFG?
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Q11.If tangents PA and PB from a point P to a circle with centre O are inclined to each other at angle of 80°, then ∠ BOA is equal to
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Q12.In figure, a circle is inscribed in a quadrilateral ABCD in which angle B = 90o. If AD = 23 cm, AB = 29 cm and DS = 5 cm, find the radius (r) of the circle.
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Q13.An isosceles triangle ABC is inscribed in a circle. If AB = AC = 13 cm and BC = 10 cm, find the radius of the circle?
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Q14.A circle touches all sides of a quadrilateral ABCD with AB = 6 cm, BC = 7 cm & CD = 4 cm. Find AD.
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