How far from the start? East then north
East and north make a right angle. The straight-line distance is the hypotenuse.
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Lena walks 36 km east and then 105 km north. How far is Lena from the start in a straight line, in km?
Answer: 111
Sam walks 5 km east and then 12 km north. How far is Sam from the start in a straight line, in km?
Answer: 13
Lena walks 18 km east and then 80 km north. How far is Lena from the start in a straight line, in km?
Answer: 82
Tip: East and north make a right angle. The straight-line distance is the hypotenuse.
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