Which could be one of the faces of a cylinder? 
A 
 
B 
 
C Both (A) and (B)
D None of these 
Ans 3:
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Class : Class 6 
                                                                                                
                                                                                                The answer should be only B. The all sides of a rectangle are straight, while the cylinder has curved edges even when viewed from top.
                                                                                            
                                                                                            Ans 10:
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Ans 14:
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                                                                                                     Kart Bansal 
                                                                                                    from
                                                                                                    abc, Bhiwani
                                                                                                
                                                                                                Class : Class 8 
                                                                                                
                                                                                                Ans is incorrect. It is 'B' only. Rectangle is not a face of a cylinder. Only after you flatten a cylinder you get a rectangle but not per se