Physics vector problem

A dog in an open field runs 12.0 east and then 26.0 in a direction 51° west of north.

a)In what direction must the dog then run to end up 11.0 south of her original starting point?

b)How far must the dog then run to end up 11.0 south of her original starting point?

Posted by Ami 

Answer:

Hope that the following diagram will help you solve the question

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