 
			 
			MCQOPTIONS
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				| 1. | The difference between the sum of the angles of a apherical triangle on the earth's surface and the angles of the corresponding plane triangle for every 195.5 km2 of area is only | 
| A. | 1 second | 
| B. | 5 second | 
| C. | 10 second | 
| D. | 15 second | 
| Answer» B. 5 second | |