Answer:
The surface area of the ball is 12.56 square feet.
Step-by-step explanation:
Given : A ball has a radius of 1 foot.
To find : What is the surface area of the ball?
Solution : Ball is consider as a sphere,
So, The surface area of a sphere is 
We have given that radius r = 1 foot
Now, The surface area of the ball is




Therefore, The surface area of the ball is 12.56 square feet.