The external diameter of an iron pipe is 25 cm and its length is 20 cm. If the thickness of the pipe is 1 cm, find the total surface area of the pipe.

The external diameter of an iron pipe is 25 cm and its length is 20 cm

1.	The external diameter of an iron pipe is 25 cm and its length is 20 cm. If the thickness of the pipe is 1 cm, find the total surface area of the pipe.
A.	\[3267\,c{{m}^{2}}\]
B.	\[3384\,c{{m}^{2}}\]
C.	\[3224\,c{{m}^{2}}\]
D.	\[3168\,c{{m}^{2}}\]
E.	None of these
Answer» E. None of these

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The external diameter of an iron pipe is 25 cm and its length is 20 cm. If the thickness of the pipe is 1 cm, find the total surface area of the pipe.

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