Flush the chemical off the skin with cool running water for at least 10 minutes. For dry chemicals, brush off any remaining material before flushing. Wear gloves or use a towel or other suitable object, such as a brush. Remove clothing or jewelry that has been contaminated by the chemical.
The angle bisector theorem is commonly used when the angle bisectors and side lengths are known. It can be used in a calculation or in a proof. An immediate consequence of the theorem is that the angle bisector of the vertex angle of an isosceles triangle will also bisect the opposite side.