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.
1 Itâs less effective than hormonal birth control methods. 2  Thereâs a possibility for vaginal irritation due to the use of spermicide (nonoxynol-9), which may increase the risk of urinary tract infections (UTIs) and HIV transmission. 3  It may also increase the risk for toxic shock syndrome (TSS).