Here is my comprehensive 2D and 3D Formula Sheet for area and perimeter (2D) and volume and surface area (3D). With this single Geometry reference sheet, students have quick and easy access to the formulas they need to solve any area, perimeter, volume, or surface area problem.2D Shapes Included with Area and Perimeter Formulas:Circle, Triangle, Semi-Circle, Rectangle, Square, Parallelogram, Trapezoid3D Shapes Included with Volume and Surface Area Formulas:Rectangular Prism, Triangular Prism, Sp