Finding the area of a circle is easy with pizza and infinity. One of the oldest calculus problems, finding the area of a circle, can be visualized using a pizza. By dividing it up into ever smaller ...

It is once again Pi Day (March 14—which is like the first digits of pi: 3 and 14). Before getting into this year's celebration of pi, let me just summarize some of the most important things about this ...

The formula to calculate the area of a circle, with radius \(r\) is: \(\text{area of a circle} = \pi r^2\) ...

The area of a circle = \(\pi {r^2}\).