Question

A person walks 12 km due north, then 15 km due east, after that 19 km due west and then 15 km due south. how far is he from the starting point​

Answer 1

The required distance is,

In ∆OAE

OA = DB = 4 km

OE = AX = 3 km

AE2 = OA2 + OE2

AE2 = 42 + 32

AE2 = 25

AE = 5 km