Angle bisector

An angle bisector is when you have a corner, or an angle, and you want to cut it in half right down the middle. Imagine you have a big pizza slice, but you want two smaller slices that are the same size. So you cut right down the middle of the pizza slice from the point where it starts to where it ends. That line you just drew is the angle bisector! It divides the angle into two equal pieces that are the same size. It's like having two pizzas instead of one big one!