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Class 10 Mathematics Medium Mcq English Medium

A sphere has radius 9 cm. What is its total surface area?

Question
A sphere has radius 9 cm. What is its total surface area?
162p cm2
243p cm2
324p cm2
36p cm2
Answer
324p cm2
Detailed Explanation
Total surface area of a sphere is 4pr² = 324p cm2. — Examisthan.com
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