Happy Pi Day March 14th Pies Circle Parts Area Circumference Letter A4 Zip2 Printables, letter PDF and jpg A4 files in zip folder Celebrate Pi Day, and enjoy this delicious math chart, showing all the parts of a circle, and how to figure out the area and circumference of a circle, using my blueberry and pumpkin pies as a reference, to help learn the math behind circles! You will see:How to find the circumference, or perimeter of (the length of the line around) a circleHow to find the area of a c