Q.9 M and N start from the same location. M travels 10 km East and then 10 km North-East. N travels 5 km South and then 4 km South-East. What is the shortest distance (in km) between M and N at the end of their travel?
(A) 18.60
(B) 22.50
(C) 20.61
(D) 25.00
Answer: (C)
Explanation: