RRB Group D Model Paper 8 with solutions

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Question : 45 of 100
 
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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 (Take π = 227)
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