Question

A man goes 3 km due north and then 4 km due cast. How far is he from his initial position​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

R.E.F image

By Pythagoras theorem,

OB

2

=OA

2

+AB

2

⇒OB

2

=3

2

+4

2

=9+16=25

⇒OB=5km