A rope of which a calf is tied is increased from 12 m to 23 m, how much additional grassy ground shall it graze?  Choose the correct answer.
A) 1120 m2
B) 1250 m2
C) 1210 m2
D) 1200 m2
E) 1300 m2
π (232 – 122) = 1210   ANSWER:1210 m2
<result>C</result>
A rope of which a calf is tied is increased from 12 m to 23 m, how much additional grassy ground shall it graze?