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 one
A) 1222
B) 1289
C) 1210
D) 1129
E) 1123
π (232 – 122)   = 1210   Answer:1210
<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?