Posted by **Sasha** on Monday, October 27, 2008 at 9:10pm.

Edna and Nancy leave the house of a common friend at the same time and walk for 4 hours. Edna walks due east at the average rate of 4 kilometers per hour and Nancy walks due north at the average rate of 3 kilometers per hour. What is the straight-line distance between them in kilometers, at the end of the 4 hours?

- math -
**bobpursley**, Monday, October 27, 2008 at 9:14pm
on walked 12km, and one walked 16km at right angles.

Isn't this a 3-4-5 right triangle?

- math -
**Reiny**, Monday, October 27, 2008 at 9:17pm
Wow, Edna and Nancy walk for 16 km and 12 km??

Can't be in 2008, they would get in their SUV's for sure, lol

I see a right-angled triangle with sides 12 and 16, where you have to find the hypotenuse.

Think Pythagoras !

- math -
**dana**, Friday, November 13, 2015 at 6:13am
12

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