1.

A closed metallic cylindrical box is m high and its base radius is 35 cm. If the metal sheet costs ` 80 per \[{{m}^{2}},\] then find the cost of the material used in the box.

A. ` 281.60
B. ` 290
C. ` 340.50
D. ` 500
Answer» B. ` 290


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