A triangular pyramid is sliced by a plane parallel to the base. What is the shape of the cross-section

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?

I’m really confused and need to learn this