Gif 3 How to Create an Ellipse. More on Ellipse. Gif 4 Surface Area of Cylinder (Right Circular)? More on Cylinder. Advertisement. Gif 5. More on Area of Circle. Gif 6 What is a Radian? More on Radians. Gif 7. More on Graphing Sine. Gif 8 Exterior Angles of a Polygon. More on Polygon Angles. Gif 9.