**Nature of Roots of Quadratic Equations**

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by Jashan

by Jashan

**Circles ncert solutions Chapter 10 Exercise 10.2 Question 8**

**8. ** A quadrilateral ABCD is drawn to circumscribe a circle. Prove that AB + CD = AD + BC.

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**Circles ncert solutions Chapter 10 Exercise 10.2 Question 7**

**7.** Two concentric circles are of radii 5 cm and 3 cm. Find the length of the chord of the larger circle which touches the smaller circle.

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**Circles ncert solutions Chapter 10 Exercise 10.2 Question 6**

**6.** The length of a tangent from a point A at distance 5 cm from the center of the circle is 4 cm. Find the radius of the circle.

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**Circles ncert solutions Chapter 10 Exercise 10.2 Question 5**

** 5.** **Prove that the perpendicular at the point of contact to the tangent to a circle passes through the center.**

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