Area of square = 8^2 = 64
Area of circle = pi x r^2 = 3.1415 x 4^2 = 50.27
64 - 50.27 = 13.73
answer
area inside square but outside circle = 13.7 in^2 (it's C.)
Answer:
The length of the fence needed to surround this garden is 188 meters.
Step-by-step explanation:
Given : A fence is guarding off a vegetable garden in the form of a rectangle. It has one side that is 10 m greater than the other side.
To find : The length of the fence needed to surround this garden if the area of the vegetable garden is 2184 m² ?
Solution :
Let the one side of rectangle be 'x'.
Then the other side is 'x+10'.
The area of the rectangle is 2184 m²,
i.e. 

Solve by middle term split,




Reject negative value,
The side of the rectangle is 42 m.
The other side is 42+10=52 m
The perimeter of the rectangle is 



Therefore, the length of the fence needed to surround this garden is 188 meter.