Free Printable Geometry Formulas Sheet. Free Printable Geometry Formulas Sheet, a very useful one page reference for students Geometry Classroom. Teachers and parents can print this Geometry Formula Sheet and share with students at school, tutoring or homeschool. The Geometry Formulas Sheet includes the rectangle, triangle, square, circle, trapezoid, parallelogram, rectangular solid, cube, right circular cylinder, sphere, right circular cone,