Rectangle with Lengths a, b, and c with Areas ac and bc Small 320×135 Medium 640×270 Large 1024×432 Download TIFF Original 2400×1012 | (137.0 KB) Description An illustration of composite rectangle with lengths a, b, and c with area ac + bc. This illustration represents the product of c(a+b). Keywords a, area, areas, b, c, c(a+b), composite figure, distributive property, length, lengths, rectangle, rectangles, Sides, width Galleries Quadrilaterals Source: Claude Irwin Palmer Library of Practical Electricity: Practical Mathematics For Home Study (New York: McGraw-Hill Book Company, Inc., 1919) 272