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Question

A piece of square land is having a perimeter of  20 m. A cow is standing in the middle of the square land as shown in the figure. What is the minimum distance that the cow has to travel in order to go out of the field and drink water?


  1. 5 m

  2. 2.5 m

  3. 4 m

  4. 20 m


Solution

The correct option is B

2.5 m


Perimeter of a square = 4 × Side
Side = 204 = 5 m.
In order to go out, the cow has to travel the length of half the side which is 52 = 2.5 m.

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