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Class 7 Mathematics Length, Perimeter and Area: Surface Area

The figure below represents a half of a cylindrical piece of wood of diameter 28cm and a length 50cm. What is the surface area of the wood? (Take = $pi=22/7$ )

A. 6416 $cm^2$
B. 4216 $cm^2$
C. 3908 $cm^2$
D. 2816 $cm^2$

(6m 36s)

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