1) A pyramid is a solid shape with one polygonal base and triangular faces that join the base edges to a single vertex called the apex. 2) The document provides examples of right and oblique pyramids and explains how to calculate the total surface area and volume of various pyramid shapes using measurements of the base and slant or vertical heights. 3) Formulas are given for calculating the total surface area of a pyramid as the sum of the areas of each face, and the volume of a pyramid as one-third the product of the base area and vertical height.