I need help please :(​

You will get 25 points an image of a rectangular prism is shown below: part a: a cross section of the prism is cut with a plane parallel to the base. what is the name of the shape created by the cross section? explain your answer. (5 points) part b: if a cross section of the prism is cut perpendicular to the base, what would be the shape of the resulting cross section? explain your answer. (5 points)

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school