The exercise is to verify the value of pi by plotting circumference vs. radius of a number of objects measured in a lab. Here is the data: Here is the original result:

### Dave Bruns

Hi - I’m Dave Bruns, and I run Exceljet with my wife, Lisa. Our goal is to help you work faster in Excel. We create short videos, and clear examples of formulas, functions, pivot tables, conditional formatting, and charts.