A person travels through 5 cities - A, B, C, D, E. City E is 2 km west of D, D is 13 km north-east of A C is 5 km north of B and 4 km west of A. If this person visits these cities in the sequence B – C – A – E – 0, what is the effective distance between cities B and D?A person travels through 5 cities - A, B, C, D, E. City E is 2 km west of D, D is 13 km north-east of A C is 5 km north of B and 4 km west of A. If this person visits these cities in the sequence B – C – A – E – 0, what is the effective distance between cities B and D?