SOLUTION: Two friends start out from the same place and walk in directions that are perpendicular to each other. After a while, one of the friends had walked 1 mile and the other had walked

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Question 1153974: Two friends start out from the same place and walk in directions that are perpendicular to each other. After a while, one of the friends had walked 1 mile and the other had walked 2 miles.How far apart are the friends to the nearest 10th of a mile.
Answer by ramkikk66(644) About Me  (Show Source):
You can put this solution on YOUR website!
The two friends walk in perpendicular directions. At the end of the time, their paths form 2 shorter sides of a right triangle as shown in the picture.

The distance between them is the hypotenuse of the right triangle.
Applying Pythagoras' theorem, the hypotenuse
= sqrt%281%5E2+%2B+2%5E2%29+=+sqrt%285%29+=+2.2 nearest to the 10th of a mile.
Ans = 2.2 miles