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Two concentric circles with radius 3 cm ...

Two concentric circles with radius 3 cm and 9.25 cm. Find the length of the chord of the bigger circle which is tangent to the other circle.

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4 cm
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EDUCART PUBLICATION-SAMPLE PAPER 7-PART - B (SECTION - IV)
  1. Solve for x and y : x+(y)/(4)=11," "(5x)/(6)-(y)/(3)=7

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  2. A 2-digit number is such that the product of the digit is 20. If 9 is ...

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  3. triangle ABC with vertices A(0-2,0),B(2,0) and C(0,2) is similar to tr...

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  4. Prove that the lengths of tangents drawn from an external point to a c...

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  5. In the figure, PQ and RS are the common tangents to two circles inters...

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  6. Two concentric circles with radius 3 cm and 9.25 cm. Find the length o...

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  7. A number x is selected from the numbers 1,2,3 and then a second number...

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  8. Find the value of : (5sin^(3)30^(@)+cos^(2)45^(@)-4tan^(2)30^(@))/(2...

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  9. The first and the last terms of an A.P. are 17 and 350 respectively. I...

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  10. Prove that 2sqrt3-4 is an irrational number, using the fact that sqrt3...

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  11. The sum of two numbers, as well as, the difference of their squares is...

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  12. Find the values of k for which the following equations have an infinit...

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  13. triangle ABC with vertices A(0-2,0),B(2,0) and C(0,2) is similar to tr...

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  14. Prove that the sum of the squares of the sides of a rhombus is equa...

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  15. From a point P, two tangents PT and PS are drawn to a circle with cent...

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  16. A cylindrical bucket, 32 cm high and with radius of base 18 cm, is ...

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  17. Find the area of the shaded region (use pi = (22)/(7))

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  18. Find out area of triangle OAB and BCD shown in figure :-

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