SSC CPO SI and ASI 2014 Paper

Deepali makes a model of a cylindrical kaleidoscope for her science project. She uses a chart paper to make it. If the length of the kaleidoscope is 25 cm and radius is 3.5 cm, the area of the paper she uses, in square cm, is $\left(\mathrm{Take}\mathrm{\pi }=\frac{7}{22}\right)$