Id/1265/assignments/100037/0#questionstyle.0 Areas = 1 12 h = height ..... Area = h(2atr) Circumference 2nr Part a: Assume that the height of your cylinder is 4 inches. Consider A as a function of r, so we can write that as A (r) = 2 mr + 8 mr. What is the domain of A (r)? In other words, for which values of r is A (r) defined? Part b: Continue to assume that the height of your cylinder is 4 inches. Write the radius r as a function of A. This is the inverse function to A (r), i.e to turn A as a function of r into. r as a function of A. Save Quit & Save Previous Unit Item Next Unit Item Previous Page Next Page 6:46 PM