# Solution: Determine the diameter of a closed cylindrical tank to obtain minimum surface area

Determine the diameter of a closed cylindrical tank having a volume of 11.3 cu m. to obtain minimum surface area.

#### Problem Statement: CE Board November 1996

Determine the diameter of a closed cylindrical tank having a volume of 11.3 cu m. to obtain minimum surface area.
• A. 1.22
• B. 1.64
• C. 2.44
• D. 2.68

The diameter of a closed cylindrical tank is 2.44 in.

Solution:

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