The base can be any shape: if it is a polygon the shape is called a pyramid. The cones you will see in exams will be circular based. The formulas for the volume and surface area of a cone will be ...
Image caption, A pyramid is made up of a polygonal ... This is shown in the formula \(E\) = \(V\) + \(F\) – 2 The flat surface of a cube is a face. Each face of a cube is a square.