MCQOPTIONS
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				| 1. | 
                                    A circular sphere mile is the area of cross-section of a wire | 
                            
| A. | having a diameter equal to 1 miles | 
| B. | having a radius equal to 1 miles | 
| C. | having a circumference equal to 1 miles | 
| D. | none of the above | 
| Answer» B. having a radius equal to 1 miles | |