posted by sarah on .
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
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.
thanks,but what is 3^2,is it 3time 2 or square root of 3
3^2 = 3 squared = 9