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Class 10 Mathematics Medium Mcq English Medium

A: Sphere and hemisphere curved areas are equal. R: Sphere area is 4pr²; hemisphere CSA is 2pr².

Question
A: Sphere and hemisphere curved areas are equal. R: Sphere area is 4pr²; hemisphere CSA is 2pr².
The assertion is false, but the reason is true.
Both statements are true, and the reason explains the assertion.
Both statements are true, but the reason does not explain the assertion.
The assertion is true, but the reason is false.
Answer
The assertion is false, but the reason is true.
Detailed Explanation
The assertion is false because the sphere area is twice the hemisphere curved area; the reason is true. — Examisthan.com
Related Questions
A: Cylinder volume is pr²h. R: At fixed radius, volume varies with height. Mathematics · Surface Areas and Volumes A: A sphere area is 4pr². R: Doubling radius quadruples area. Mathematics · Surface Areas and Volumes A: The volume of a cone is pr²h. R: Equal r and h: cone volume is one-third cylinder volume. Mathematics · Surface Areas and Volumes A: The total surface area of a solid hemisphere is 3pr². R: Its curved area is 2pr². Mathematics · Surface Areas and Volumes

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