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A hemisphere of lead of radius 9 cm is cast into a right circular cone of height 72 cm. The radius of the base of cone is
  • a)
    5.4 cm
  • b)
    4.5 cm
  • c)
    3 cm
  • d)
    6 cm
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A hemisphere of lead of radius 9 cm is cast into a right circular cone...
Given,
Radius of hemisphere = (R) = 9 cm
Height of cone = 72 cm
Let radius of cone = r cm
We know that,
Volume of hemisphere = volume of cone




Radius of base of cone = 4.5 cm.
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Community Answer
A hemisphere of lead of radius 9 cm is cast into a right circular cone...
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A hemisphere of lead of radius 9 cm is cast into a right circular cone of height 72 cm. The radius of the base of cone isa)5.4 cmb)4.5 cmc)3 cmd)6 cmCorrect answer is option 'B'. 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 hemisphere of lead of radius 9 cm is cast into a right circular cone of height 72 cm. The radius of the base of cone isa)5.4 cmb)4.5 cmc)3 cmd)6 cmCorrect answer is option 'B'. 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 hemisphere of lead of radius 9 cm is cast into a right circular cone of height 72 cm. The radius of the base of cone isa)5.4 cmb)4.5 cmc)3 cmd)6 cmCorrect answer is option 'B'. Can you explain this answer?.
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