number of poles in a fence

Algebra Level 2

A farmer built a fence around his 17 cows, in a square shaped region .He used 27 fence poles on each side of the square. how many poles did he need altogether?

100 poles 108 poles 112 poles 104 poles

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1 solution

2 Corner Poles are Common to Each Side, (4 Total Corner Pole), So the Remaining Poles are 25 at each side.

Separate Poles at each side= 25

Total Separate Poles on each side =25 * 4 =100

Corner Poles = 4

Total Poles = 4+100=104

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