Mathematics · Mensuration
A cylindrical building with an internal height of 15 units and an internal radius of 7 units has walls and a roof that are 1 unit thick. Its walls are to be painted inside and out. Its roof and ceiling are also to be painted. What is the total square area to be painted?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1479π
- 2579π✓
- 3569π
- 4468π
Correct answer
579π
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