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The distance between the centres of two circles is 10 cm whose radius are 4.5 cm and 3.5 cm respectively.What is the length of the transversal common tangent to these circles.

A

8 cm

B

7 cm

C

6 cm

D

None of these

Text Solution

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The correct Answer is:
C
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LUCENT PUBLICATION-CIRCLE AND ITS TANGENT LINES-EXERCISE 8A
  1. In the figure given above, O is the centre of the circle OA = 3 cm, AC...

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  2. Two circles touch each other internally. Their radii are respectively ...

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  3. The distance between the centres of two circles is 10 cm whose radius ...

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  4. If the radii of two circles be 6 cm and 3 cm and the length of the tra...

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  5. ABC is an equilateral triangle inscribed in a circle with AB = 5 cm. L...

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  6. Two circles touch each other externally at P. Two secants APB and CPD ...

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  7. A point P moves such that its distances from two given points A and B...

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  8. ABCD is a cyclic quadrilateral and A + B = 2 ( C + D). If angle C gt 3...

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  9. If diameters of two circles are 6 units and 10 units and their centres...

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  10. Point A is situated at a distance of 6.5 cm from the centre of a circl...

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  11. A circle with centre O is given and C is a point on its minor arc AB. ...

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  12. In the figure, ABC is a triangle in which AB = AC. A circle through B ...

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  13. In the given figure if angle PAQ = 59^(@), angle APD = 40^(@), then wh...

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  14. In the adjacent figure C and D are two points on circumference of a se...

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  15. In the figure given below, if angle AOP = 75^(@) and angle AOB = 120^(...

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  16. Length of two chords AB and AC of a circle are respectively 8 cm and 6...

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  17. The chord of circle whose radius is 5 cm touches another circle radius...

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  18. A chord of a circle is equal to its radius. The angle subtended by thi...

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  19. The radius of two concentric circles are 9 cm and 15 cm. If the chord ...

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  20. Two chords AB and CD of circle whose centre is O, meet at the point P ...

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