One Atta Time Flash Cards Distance Learning Create New Sheet Select a Worksheet > Version 1 Version 2 Version 3 Version 4 Version 5 Version 6 Version 7 Version 8 Version 9 Version 10 Grab 'em All Finding Missing Side Length of Rectangle Find a missing side length of a rectangle when you know the area and one side.Use multiplication and division to connect side lengths and area of rectangles.