Answered

You first walk 8.0 km north from home, then walk east until your displacement from home is 10.0 km. How far east did you walk?

Answer :

AYAANRGO
You use Pythagorean theorem

10^2 = 8^2 + b^2
100 = 64 + b^2
b^2 = 36
b = 6

You walked 6km east

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