math
posted by nripesh .
A man travels 4km due north,then travels 6km due east and further travels 4km due north .how far he is from the starting point.

so now he's 8km N and 6km E
The distance is the hypotenuse, so he's 10km away. 
A plane left a town and travelled 96km on the bearing of 045. Tt then went southwards until it was 96km from the starting point. How far southward did it to the nearest km?

Solve it