Answer:
The Area of the Ferris wheel is 31400 Square feet
Explanation:
The AREA formula for a circle:
The Area formula for the circle is 

where
r is the radius of the circle
The area of the Ferris Wheel:
The Height of the Ferris wheel = 200 foot
Here height of the Ferris wheel is the diameter 
So the Diameter = 200
Then Radius =
 = 100 foot
 = 100 foot
Now the area of the Ferris wheel is
=> 

=> 

=> 31400 square feet