The formula for the area of a circle is A = r 2. Classify the area of a circle with a radius of 0.75 centimeters as either rational or irrational. rational irrational
So the formula for the area of a circle looks like this: [tex]A= r^{2}[/tex] Let's plug in the values: [tex]A= 0.75^{2}[/tex] Solve, and we are left with 0.5625
