Find the missing angle in each irregular polygon using the sum of interior angles formula.
Worksheet titled "WORKOUT POLYGONS" with a notice on the sum of interior angles formula, featuring 12 irregular polygons labeled (a) to (l), each with given angles and one missing angle marked as 'x'. The task is to find the missing angle in each polygon using the formula. Answers are provided at the bottom in a table format. The image is from LiveWorksheets.