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CBSE Notes Class 10 2020 : Mathematics (Vidhyalakshmi School, North Arcot) Circles

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David Vishnu
Vidhyalakshmi School, North Arcot

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VIDHYALAKSHMI SENIOR SECONDARY SCHOOL Circles MATHEMATICS Class : X Roll No. : Date : 9.10.19 Time MM - 159 1. Find the length of the tangent drawn from a point whose distance from the centre of a circle is 25 cm. Given that radius of the circle is 7 cm. 1 2. What is the angle between a tangent to a circle and the radius through the point of contact? Justify your answer. 1 3. What is the distance between two parallel tangents of a circle of radius 7 cm? 1 4. In the given gure, nd QSR. 1 5. In the given gure, AB, AC and AD are tangents. If AB = 5 cm, nd AD. 1 6. A point P is 26 cm from the centre of the circle. The length of the tangent drawn from P to the circle is 24 cm. Find the radius of the circle. 1 7. From a point P, the length of the tangent to a circle is 15 cm and distance of P from the centre of the circle is 17 cm. Then what is the radius of the circle? 1 8. In gure if ATO = 40 , nd AOB. 2 9. In gure, CP and CQ are tangents to a circle with centre O. ARB is another tangent touching the circle at R. If CP = 11 cm, and BC = 7 cm, then nd the length of BR. 2

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Additional Info : CBSE Class 10 : Mathematics : Chap. 10 Circles

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