Geometry A square concrete foundation is a base for a cylindrical tank (see figure).(a) Wr...

Geometry A square concrete foundation is a base for a cylindrical tank (see figure).

(a) Write the radius r of the tank as a function of the length x of the sides of the square.

---

(b) Write the area A of the circular base of the tank as a function of the radius r.

---

(c) Find and interpret (A ∘ r)(x).