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A man travels 4 km due North, then trave...

A man travels 4 km due North, then travels 6 km due East and further travels 4 km due North. How far he is from the starting point?

A

a. 6 km

B

b. 14 km

C

c. 8 km

D

d. 10 km

Text Solution

Verified by Experts

The correct Answer is:
D

distance between the starting pointt and end point is AD. (pythagoras theorem in `DeltaADE`)
Now, `AD^(2)=AE^(2)+DE^(2)`
`AD^(2)=(6)^(2)+(8)^(2)`
`:." "AD=sqrt(36+64)=sqrt(100)=10" km"`
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