Recent content by eXoo

still don't get it :(

My teacher has taught us neither of those ways, so I don't really know how to get a result with them. :(

1. I'll illustrate the question, I've been having a lot of troubles with it, the image is in the attachements. 2. I've tried it many times, with different methods but keep getting different answers. Really need help with it. Most recently tried by splitting it into two triangles then working...