A circle has an area of (9x^2 + 30x + 25) pie square centimeters, where x is a positive integer. Determine the smallest diameter that the circle can have.
A circle has an area of (9x^2 + 30x + 25) pie square centimeters, where x is a positive integer. Determine the smallest diameter that the circle can have.
I have this question, and i don't understand it.
recall that the area of a circle is given by $\displaystyle A = \pi r^2$, where $\displaystyle r$ is the radius.