Do you want a fun way to have your students work on the Engineering Design Process and their Mathematics at the same time? Look no further! This worksheet makes students draw a possible solution of which K’Nex are needed to create a nonagon. If students create their design, they may need to adjust their drawling. A tracing sheet is included as a way to differentiate. From here, students will measure their nonagons. After the design process is over, students will complete area and perimeter questions on the back of the sheet. As an extension or homework, there is a constructed response dealing with the area and perimeter. This can be a 1-2 day lesson.