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    				| 1. | Calculate the distance travelled by the car, if a car travels `4km` towards north at an angle of `45^(@)` to the east and then travels a distance of `2km` towards north at an angle of `135^(@)` to the est.A. `6km`B. `8km`C. `5km`D. `2km` | 
| Answer» (a) As the distance is a scalar quantity. So, total distance travelled `=4+2=6km` | |