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The radius of a hemisphere is 21 cm. Its volume (in cm3) will be:

(Use π = 22/7)

This question was previously asked in
SSC GD Constable (2022) Official Paper (Held On : 16 Jan 2023 Shift 1)
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  1. 19404
  2. 20112
  3. 21109
  4. 22101

Answer (Detailed Solution Below)

Option 1 : 19404
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Detailed Solution

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Given data:

Radius (r) of the hemisphere = 21 cm

Concept or formula:

Volume of a hemisphere = 2/3πr3

Calculation:

Substitute the given values in the formula

⇒ Volume = 2/3 × 22/7 × 213 = 19404 cm3

Hence, the volume of the hemisphere is 19404 cm3.

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Latest SSC GD Constable Updates

Last updated on Jul 8, 2025

-> The Staff Selection Commission released the SSC GD 2025 Answer Key on 26th June 2025 on the official website.

-> The SSC GD Notification 2026 will be released in October 2025 and the exam will be scheduled in the month of January and February 2026.

-> Now the total number of vacancy is 53,690. Previously, SSC GD 2025 Notification was released for 39481 Vacancies. 

-> The selection process includes CBT, PET/PST, Medical Examination, and Document Verification.

-> The candidates who will be appearing for the 2026 cycle in the exam must attempt the SSC GD Constable Previous Year Papers. Also, attempt SSC GD Constable Mock Tests.

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