1.

What is the total surface area (in sq cm) of a hollow cylinder open at both ends, if its length is 22 cm, external radius is 7 cm and thickness is 1 cm? (Take π = 22/7)

A. 1879.43
B. 3758.86
C. 939.715
D. 2819.145
Answer» B. 3758.86


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