2
Manisha starts walking from her house and walks 150m south, then she turns right and walks 80m, and then she turns left and walks 60m. She finally turns left and walks 280m to reach a school. What is the shortest distance between her house and the school?
3
A bird travels: 40 km north, then 50 km east, then 110 km north, and finally 50 km west. What is the bird's final position relative to its starting point?
4
A man starts from point A, walks 20 km East to reach point B. He then turns North and walks 15 km to reach point C. Next, he turns West and walks 8 km to reach point D. Finally, he turns South and walks 15 km to reach point E. What is the distance and direction of point E from point A?