My teacher is asking what is 23 x23 please help me

Does anyone know how to do geometryme with this problem

What statement is true? 2x^2-9x+2=-1

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