A rope of which a calf is tied is increased from 16 m to 23 m, how much additional grassy ground shall it graze?  Choose the correct choice from the following answers.
A) 1217 B) 1219 C) 1210 D) 1212 E) 858
π (232 – 162) = 858   Answer:858
<result>E</result>
A rope of which a calf is tied is increased from 16 m to 23 m, how much additional grassy ground shall it graze?