Question 343460: an aircraft flies 120 km south, then 150 km east, then 200 km north. how far is the aircraft its starting position?????
Answer by Fombitz(32388)   (Show Source):
You can put this solution on YOUR website! Let the starting point be the origin (0,0).
Let east be positive x, west negative x.
Let north be positive y, south negative y.
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Starting at (0,0)
120km south: (0,0)+(0,-120)=(0,-120)
150 km east:(0,-120)+(150,0)=(150,-120)
200 km north: (150,-120)+(0,200)=(150,80)
The aircraft's currently 150 east and 80 miles north of the starting point.
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Use the distance formula to find the distance.
 km
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