Multiple Choice Questions on The diameter of a garden roller is 1 4m and it is 2m long How much area will it cover in 5 revolutio........... for Punjab Patwari Exam Preparation

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Multiple Choice Questions

The diameter of a garden roller is 1 4m and it is 2m long How much area will it cover in 5 revolutio...........

Quantitative Aptitude (Pb Patwari) Mensuration 2D
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    The diameter of a garden roller is 1.4m and it is 2m long. How much area will it cover in 5 revolutions ?

    32 m²

    Incorrect Answer

    22 m²

    Incorrect Answer

    12 m²

    Incorrect Answer

    44 m²

    Correct Answer
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    Explanation:

    Diameter = 1.4 m
    r = d/2
    r = 1.4/2
    r = 0.7m
    curved  surface area of cyclinder = 2 (22/7 ) r 2              
      = 2 ( 22/7) x0.7 x 0.7  = 8.8 m2
      No of revolution = 5
    Therefore  = 8.8 x 5   = 44 m2

    Read more on Brainly.in - https://brainly.in/question/49548#readmore

    By: Brijesh Kumar
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