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Prove that the opposite angles of a cycl...

Prove that the opposite angles of a cyclic quadrilateral are suplemenary.

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CALCUTTA BOOK HOUSE-SAMPLE QUESTIONS PAPERS-QUESTION
  1. If x = (4ab)/(a+b), then find the value of (x+2a)/(x-2a) +(x+2b)/(x-...

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  2. State and prove Pythangoras theorem.

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  3. Prove that the opposite angles of a cyclic quadrilateral are suplemena...

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  4. In DeltaABC, /A = 90^@ If CD be a median, then prove that BC^2 = CD^2...

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  5. Construct a circle of radius 2*8 cm. Take a point at a distance of 8 ...

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  6. If the sum of two angles be 135^@ and the difference of them be pi/12...

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  7. If x sin 60^@ cos^@ 30^@ = (tan^2 45^@ sec 60^@)/("cosec 60"^@) then ...

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  8. If tan50^(@) = p/q, then find the value of cos40^@.

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  9. A passenger of an aeroplane observes that Howrah station is at one sid...

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  10. The lengths of shadow of a tower standing on the ground is found to be...

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  11. If 64 water - filled buckets of equal volume are taken out from a cub...

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  12. A right circular cylindrical tank of 9 metre height is filled with wa...

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  13. Calculate how many bullets with lengths of 1 cm radius may be formed b...

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  14. Find the value of(sqrt2+sqrt3)div(sqrt2-sqrt3).

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  15. Find the value of(sqrt5+2)div(sqrt3-1).

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  16. Find the value of 4div(3-sqrt2).

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  17. If a principal becomes dublein 10 years. Then the rate of simple inter...

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  18. The mean - proportional of 16 and 25 is

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  19. O is the circumcentre of Delta ABC and if /OAB = 50^@, then the value ...

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  20. pi/6 redian =

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