There are two force vectors, one of 5 N and other of 12N . At what angle the two vectors be added to get resultant vector of 17 N, 7 N and 13 N respectively

For 17 N both the vectors should be parallel i.e. angle between them should be zero.For 7 N both the vectors should be antiparallel i.e. angle between them should be 180o.For 13 N both the vectors should be perpendicular to each other i.e. angle between them should be 90o.