Answer:
π²x
Step-by-step explanation:
Suppose radius of the silo = x
circumference of the silo = 2πr
= 2πx
Given that,
length of rope is equal to one-half of the circumference of the silo
l = 1/2(2πx) = πx
Formula to calculate area of grass over which the goat can graze
πl²
ππx
π²x