From YouTube, produced by Lawrence Perez
The instructor demonstrates how to find the area of complex figures consisting of one or more rectangles. They show how to break the figure up into two different figures and then add the areas together. The first figure is in the perimeter video, so to find the missing sides you could watch that video or just go on in this video and they give you the measurements. They discuss the formula for area of a square and rectangle and use this to find the area of the two figures and then add them together. They also discuss why the area is label as cm squared or inches squared. Then other examples are shown. Video is good quality and good for all students as review or initial learning of the concept.