Rotation. In this animated Math Shorts video from the Utah Education Network, learn about rotation, which describes how a geometric shape turns around a point, called the center of rotation. When a geometric shape rotates on a coordinate plane, it stays exactly the same distance from the center of rotation.
Which birth control methods also protect against sexually transmitted infections (STIs)? The male latex or polyurethane condom gives the best protection against STIs. The female condom provides some protection. With all other methods, you also should use a male or female condom to protect against STIs.
Birth Control. Condoms prevent pregnancies and STDs. They create a barrier that keeps semen and other body fluids out of the vagina, rectum, or the mouth. There are condoms for men and for women -- but don't use both at the same time. One can stick to the other and pull it out of place or tear it.