Multiple Choice Questions on The height of a right circular cone is 35 cm and the area of its curved surface is four times the ar........... for SSC (CPO) Exam Preparation

Back to Main Page

Multiple Choice Questions

The height of a right circular cone is 35 cm and the area of its curved surface is four times the ar...........

Quantitative Aptitude (CPO) Mensuration 3D
    Download Solution PDF

    The height of a right circular cone is 35 cm and the area of its curved surface is four times the area of its base. What is the volume of the cone (in 10-3 m3 and correct up to three decimal places)?

    This questions was previously asked in
    SSC CPO 9th Dec 2019 Shift-1
    View All SSCCPO Previous Year Papers

    3.316

    Incorrect Answer

    3.384

    Incorrect Answer

    2.994

    Correct Answer

    2.625

    Incorrect Answer
    छोटे Courses बड़े Results
    Master Mensuration 3D
    Prepare through Micro-courses
    Try Now
    Explanation:

    Correct option 3: 2.994

    Given:

    • Height h=35h = 35h=35 cm

    • Curved Surface Area = 4 × Area of base

    • Volume = ? (in 10−3 m3)

    Step 1: Use CSA formula

    CSA = πrl l, Base area = π r2

    πrl=4πr2

    => l = 4r

    Step 2: Use Pythagoras

    l2 = r2+h2 

    r2+352⇒16r2

     r2 = 81.67

    Step 3: Volume formula

    V = 2.994x10-3m3

    By: santosh
    ProfileResources

    Let's Discuss

    Master
    Mensuration 3D
    With abhipedia
    Micro Courses
    Try Now
    What our students have to say
    Review on us
    Download Abhipedia Android App

    Access to prime resources

    Downlod from playstore
    download android app download android app for free