This worksheet is all about deciding which is the correct formula for perimeter or area of different 2D shapes out of a possible two options. Ideal for older students who need a quick refresh of area and perimeter, the resource will also test learners' ability to anticipate how to find the area and perimeter of increasingly complex shapes.

Images are included for each shape. The worksheet begins with basic shapes, a rectangle and a square and includes triangles, circles, a trapezium and compound shapes involving rectangles, semi-circles and triangles.

There is a possibility to extend by setting variables at a certain value and asking students to use the formulae to find the actual area or perimeter of each shape.