A right circular cylindrical tunnel of diameter 2 m and length 40 m is to be constructed from a sheet of iron. What is the area of the iron sheet required in\[{{m}^{2}}\]?

A right circular cylindrical tunnel of diameter 2 m and length 40 m is

1.	A right circular cylindrical tunnel of diameter 2 m and length 40 m is to be constructed from a sheet of iron. What is the area of the iron sheet required in\[{{m}^{2}}\]?
A.	\[40\pi \]
B.	\[60\pi \]
C.	\[80\pi \]
D.	\[100\pi \]
Answer» D. \[100\pi \]

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A right circular cylindrical tunnel of diameter 2 m and length 40 m is to be constructed from a sheet of iron. What is the area of the iron sheet required in\[{{m}^{2}}\]?

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