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) 2989	B) 2789	C) 1210	D) 1288	E) 1211
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?