Question

A rope by which a calf is tied is increased from 12 m to 23 m. how much additional grassy ground shall it graze
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Answer 1

Answer:

1201.2m² approx

Step-by-step explanation:

area of circle =π r²

old grazing area =π 12²=.π 144m²

new grazing area =π 23²=π529m²

addition grazing area=new grazing area-old grazing area=.π529-π144=π(529-144)=π385

=3.12*385=1201.2m²