Question

Can somebody please explain and help me get a better understanding of the side-splitter theorem? (Geometry) I still can't understand it and it's on my test tomorrow

Answer 1

you start with a triangle, and a 3rd line that is *parallel* to one of the sides

Answer 2

next, you can label the sides like this


and make "ratios"

you have to understand how ratios work.
most of the time, 3 of those letters are numbers, and they want you to find the number for the 4th letter