Welcome to the “Business Math Toolkit: Surface Area” video lesson intended to instruct learners on how to calculate the combined area of each of the sides of a three-dimensional shape. This lesson is part of the “Business Math Toolkit,” which guides learners in basic math skills they may need to leverage for their job. In this lesson, viewers will review the formulas for calculating the area of triangles, rectangles, and circles. Viewers can use this information to calculate the area of each face of the three-dimensional shape and add everything up at the end to get the surface area. This lesson then shows how to simplify the process by providing surface area formulas for cubes, prisms, cylinders, pyramids, and spheres.