A rope of which a calf is tied is increased from 12 m to 23 m, how much additional grassy ground shall it graze?
Pick
A) 1218
B) 1219
C) 1210
D) 1211
E) 1212
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?