1.

The area A, of a solid is given by the formula \[A=\pi {{r}^{2}}+2\,\pi \,rh+\pi \,rl.\]. Find the value of A given that \[\pi =3.142,\,r=10,\,h=3\] and \[l=4\].

A.  \[629\]          
B.  \[628.4\]
C.         \[630\]     
D.         \[631\]
Answer» C.         \[630\]     


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