Something that can be usefull at times in being able to calculate the total Area of a circle, especially when plotting it on a map. So, I decided to slightly modify my "Draw a Circle Radius Around Lat/Lng Point" to make it also calculate the Area of the circles and display that value within the TItle of the Circle Shapes Pushpin.
Remember, back in Trig class, it's fairly simple to calculate the area of a circle. You just Multiply Pi by the Radius Squared.
Area = Pi * (radius * radius)