Method of Sections
Packing Sheet! (thank you Bob Ong) This topic is so packing easy! It's just similar to the Method of Joints only that you use sections. A plane that consists of 3 or more joints are sections. Simply use again Summation of Fx=0, Summation of Fy=0, and Summation of MO=0. Easy!

Parabolic Cables
A bit tricky, you need to use your math skills here. In case you don't know a parabola is a curved line. One of its dimension is a square of the other. y=x2 or x=y2. It's not that much of analysis but the formulas are a bit hard since they were derived from calculus. Ma'am said that what we had earlier is easy. We'll see tomorrow if what she said is true.