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Mensuration - Quant/Math - CAT 2008

  1. Algebra
  2. Progressions
  3. Averages
  4. Clocks and Calendars
  5. Data Sufficiency
  6. English Grammar
  7. Function
  8. Geometry
  9. Interest
  10. Mensuration
  11. Mixtures & Alligations
  12. Number System
  13. Percentages
  14. Permutation & Combination
  15. Pipes & Cisterns And Work & Time
  16. Probability
  17. Profit & Loss
  18. Races
  19. Ratio, Proportion
  20. Speed, Time & Distance
  21. Trigonometry
  22. Miscellaneous
  23. General Knowledge
Question 4 the day: April 01, 2003

The question for the day is from the topic of Mensuration
A square sheet of paper is converted into a cylinder by rolling it along its length. What is the ratio of the base radius to the side of the square?

(1) (2)
(3) (4)
Correct Answer - (1)

Solution:


Surface area of the cylinder = Surface area of the square

Here height 'h' of the cylinder = side of the square since it is rolled along its length.

Base radius r =

Ratio of base radius to side of square = : a =




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