[header] How to find area [title] Find the lengths of two consecutive sides of the rectangle. [step] Because rectangles have two pairs of sides of equal length, label one side as the base (b) and one side as the height (h). Generally, the horizontal side is the base and the vertical side is the height. 
[title] Multiply base times height to get the area. [step] If the area of the rectangle is k, k = b * h.