A man walks 2 km towards North. Then he turns to East and walks 10 km. After this he turns to North and walks 3 km. Again he turns towards East and walks 2 km. How far is he from the starting point?
None of these
ABC is a right-angle triangle,
Where, AC2 = AB2 + BC2
AC2 = 122 + 52 => 144 + 25 =>169
AC = 13 Km