A cow is tied to a pole, fixed to the midpoint of a side of a square field of dimensions 40m x 40m, by means of 14m long rope. Find
1. the area that the cow can graze
2. the decrease in the grazing area, if the length of the rope is reduced to 10.5m
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1. The area that cow can graze is in the form of semicircle.
Radius of semicircle
Length of rope =14 m
Required area = 1/2×π r²
=1/2×22/7×r²
=1/2×22/7×14×14
=308m²
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