MCQOPTIONS
Saved Bookmarks
| 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 | |