Ease your kids into the world of geometrical shapes and their properties by introducing them to free geometry worksheets like ‘Basics of a Circle.’ This printable circles worksheet is easy to comprehend and is the perfect way to help third graders learn the basic properties of a circle. By the time your kids are done with this 3rd grade math worksheet, they will be able to recite the formula for measuring the area of a circle and tell radii and diameters apart!