Identify the shape
Measure or find the needed side lengths
Use the perimeter formula for the shape
Add all side lengths to find perimeter
Use the area formula for the shape
Multiply the required dimensions to find area
Square units are used for area
Linear units are used for perimeter
Check that all measurements use the same unit
Substitute the values into the correct formula
Calculate carefully
Simplify the final answer
Label the answer with the correct units