The image shows a decision called Area created using the Expression notation. The top-right corner of the image contains the Expression icon and the decision name. Below the name, there is an Add Description field with a Q&A link under it. The top-right corner of the image contains the Menu icon. Under the Menu icon, there is the Expand/Minimize button used to view or hide the decision logic.

The value entered in the expression field is 3.14*radius*radius.