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A hemispherical bowl is made of steel of 0.25 cm thickness. The inner radius of the bowl is 5 cm. The volume of steel used is _____. (Use π = 3.141)
  • a)
    42.15 cm3
  • b)
    41.52 cm3
  • c)
    41.25 cm3
  • d)
    40 cm3
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A hemispherical bowl is made of steel of 0.25 cm thickness. The inner ...
Let r a n d R be inner and outer radius of bowl respectively.
Then, r= 5 cm, R = 5 + 0.25 = 5.25 cm.
Volume of steel used = Outer volume - Inner volume
= 41.25 cm3
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Community Answer
A hemispherical bowl is made of steel of 0.25 cm thickness. The inner ...
The formula for the volume of a hemisphere is V = (2/3)πr^3.

To find the volume of the steel used, we need to find the volume of the outer hemisphere (with radius r) and subtract the volume of the inner hemisphere (with radius 5 cm).

The inner radius of the bowl is 5 cm, so the outer radius (r) is 5 + 0.25 = 5.25 cm.

The volume of the outer hemisphere is (2/3)π(5.25^3) = 183.93 cm^3.

The volume of the inner hemisphere is (2/3)π(5^3) = 104.72 cm^3.

Therefore, the volume of steel used is 183.93 - 104.72 = 79.21 cm^3.
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A hemispherical bowl is made of steel of 0.25 cm thickness. The inner radius of the bowl is 5 cm. The volume of steel used is _____. (Use π = 3.141)a)42.15 cm3b)41.52 cm3c)41.25 cm3d)40 cm3Correct answer is option 'C'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A hemispherical bowl is made of steel of 0.25 cm thickness. The inner radius of the bowl is 5 cm. The volume of steel used is _____. (Use π = 3.141)a)42.15 cm3b)41.52 cm3c)41.25 cm3d)40 cm3Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A hemispherical bowl is made of steel of 0.25 cm thickness. The inner radius of the bowl is 5 cm. The volume of steel used is _____. (Use π = 3.141)a)42.15 cm3b)41.52 cm3c)41.25 cm3d)40 cm3Correct answer is option 'C'. Can you explain this answer?.
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