Posted by Jacob on Tuesday, March 29, 2011 at 4:44pm.
114
how did you get 114???
The radius of the garden before change=5(since 5x5=25). 5+2=7, which is the new radius of the garden.
To get the amount of fencing needed, you first need to find the diameter and the resulting circumference.
D=2r, r=7, therefore D=14. C=D¥ð, so the circumference is 14¥ð.
That's about 43.9 meters.
Therefore you need 44 meters of fences, which is 44 fences.
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