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Prove the tangents drawn from an externa...

Prove the tangents drawn from an external point to a circle are equal.

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Prove that "the lengths of tangents drawn from an external points to a circle are equal ".

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Prove that the tangents drawn from an external point are equal.

Prove that the angle between the two tangents drawn from an external point to a circle is supplementary to the angle subtended by the line-segment joining the points of contact at the centre.

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CPC CAMBRIDGE PUBLICATION-PRACTICE QUESTION PAPER 12-ANSWER THE FOLLOWING QUESTION
  1. ABC is a right angle triangle having angleB=90^@ . If BD=DC, show tha...

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  2. Prove that ara of the equilateral triangle described on the sides of s...

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  3. A box contains 90 dices which are numbered from 1 to 90. If one dise i...

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  4. Draw a pair of tangents to a circle of radius 5 cm which are inclined ...

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  5. Prove that (tan theta + sin theta)/(tan theta - sin theta) =(sec theta...

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  6. Asha is 5 times as old as her daughter Usha, 5 years later Asha will b...

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  7. The sum of 2 digits of a 2 digits number is 12 the number obtained by ...

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  8. Find the other two zeroes of the polynomial y^(4)+y^(3)-9y^(2)-3y+18 i...

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  9. Solve for x . 1/(a+b+x) =(1/a + 1/b + 1/x) (Where a ne 0, b ne 0 , ...

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  10. The diagonal of a rectangular filed is 60 meters more than the shorte...

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  11. If the points (7,-2) , (5,1) and (3,5) are collinear. Find the value o...

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  12. Find the area of Rhombus if its vertices are (3,0) (4,5) (-1,4) and (-...

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  13. Prove the tangents drawn from an external point to a circle are equal.

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  14. Find the area of the shaded region in the figure, where ABCD is a squa...

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  15. The distribution below gives the weights of 30 students of a class. Fi...

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  16. Solve graphically : 2x-y=2 and 4x-y=4

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  17. If the sum of first 7 terms of an A.P is 49 and that of 17 terms is 28...

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  18. The sum of the third and seventh terms of an AP is 6 and their product...

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  19. A person, walking 20 mts from a point towards a flagpost along a horiz...

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  20. In a right angled triangle , square on the hypotenuse is equal to sum ...

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