Help stuck pleaseee

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

How many square centimeters of wrapping paper will be used to wrap the shoe box?

Find the solution on the interval [0, 2pi)