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  3. 11th Class
  4. Mental Ability
  5. Mensuration

11th Class Mental Ability Mensuration Question Bank Question - Mensuration

  • question_answer
    If the ratio of the areas of two squares is 9:1, then the ratio of their perimeters is:

    A) 9:1

    B) 3:4

    C) 3:1

    D) 1:3

    E) None of these

    Correct Answer: C

    Solution :

    Explanation Option (c) is correct. Let x, y be the sides of square \[=\frac{{{x}^{2}}}{{{y}^{2}}}=\frac{9}{1}\] \[\Rightarrow \,\,=\,\,\frac{x}{y}=\frac{3}{1}\] The ratio of perimeter is 3:1 i.e., x: y = 3: 1


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