The cow is tied to a peg at one corner of a square shaped grass field of side 20m by means of a 7m long rope. Find the area of the field in which the horse cannot graze.
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Answer:
Step-by-step explanation:
Area= area of sector with (θ=900)=θ3600⋅π⋅r2
=90/360*22/7*25
=19.625 m2
Increase in area=θ360⋅π(10m)2−19.625
=90360⋅3.14⋅100−19.625
=58.875 m2
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