!PLEASE HELP! A square concrete foundation was prepared as a base for a large cylindrical gasoline tank.
a. Express the radius of the tank as a function of the length (x) of the sides of the square.
b. Express the area (A) of the circular base of the tank as a function of the radius (r).
Answer: B, you have to multiply the (A) area by 10 and then you divide the circular base of the tank, then you add those 2 answers and you have it as the function of the radius!