Answer:

Step-by-step explanation:
We are given that
Length of rope=l=160 feet
Radius of quadrant of circle=r=160 feet
We have to find the maximum grazing area of the cow.
We know that
Area of quadrant of circle=
Where 
Using the formula
Area grazed by cow=
Area grazed by cow=
The answer is 8 because
8 times 4 = 32
8 times 7 =56
8 times 3 =24
56 minus 24 = 32
Answer:
Hey have you tried on your own to make sure you understand it?
Step-by-step explanation: