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The distance between the centres of two ...

The distance between the centres of two circles having radii 8 cm and 3 cm, is 13 cm. The length (in cm) of the direct common tangent of the two circle is

A

18

B

12

C

15

D

16

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CHAMPION PUBLICATION-2014 TIER-II PAPER(18)-EXERCISE
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  2. ABCD is a regular trapezium in which AD || BC Diagonal AC and BD inter...

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  3. The distance between the centres of two circles having radii 8 cm and ...

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  4. Chords PQ and RS of a circle, when produced, meet at a point O. If PQ ...

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  5. The point of intersection for the diagonals AC and BD of the cyclic qu...

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  6. Three circles of radius 6 cm touches each other externally. Then the d...

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  7. In Delta ABC, AB = AC, O is a point on BC such that BO = CO and OD is ...

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  8. In an isosceles triangle, if the unequal angle is twice the sum of the...

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  9. ‘O' is the orthocentre of triangle ABC.Then angle BOC +angle BAC is eq...

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  10. In triangle ABC , the bisector of angle BAC intersects BC at D and the...

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  12. tan(5x-10^(2))=cot(5y+20^(@)) then value of (x+y) is

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  15. The base of a triangle is 12 sqrt3 cm and two angles at the base are 3...

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  16. If a (tan theta+ cot theta )=1, sin theta +cos theta = b,then the rel...

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  17. The value of tan11^@ tan17^@ tan 79^@ tan73^@ is- tan11^@ tan17^@ ta...

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  18. If sin A + sin^2 A = 1, then the value of cos^2A + cos^4 A is यदि ...

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