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 rightangled triangle, and each will have gone 5 km
(3^2 + 4^2 = 5^2)
and the line joining their endpositions 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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