Posted by **sarah** on Saturday, July 20, 2013 at 5:51am.

2 people start off to work directly away from each other.they each walk for 4 kms then turn directly to their right and walk for another 3 kms.how far apart are they

- math -
**Reiny**, Saturday, July 20, 2013 at 8:17am
make a sketch,

the path of each will form the standard 3,4, 5 right-angled triangle, and each will have gone 5 km

(3^2 + 4^2 = 5^2)

and the line joining their end-positions will pass through their starting point

So they are 10 km apart.

- math -
**sarah**, Saturday, July 20, 2013 at 10:47am
thanks,but what is 3^2,is it 3time 2 or square root of 3

- math -
**Ms. Sue**, Saturday, July 20, 2013 at 12:04pm
3^2 = 3 squared = 9

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