Think of the figure as having 9 parts (boxes) and one blank. Half of 9 if 4 1/2. So you must divide the figure into two so each part has 4 1/2 parts (boxes). Start your line at the bottom at 2 3/4 parts and go up. You will have 3 full parts plus 2 parts that are 3/4's which will equal 4 1/2. The other side will have 2 parts that are 1/4 and 4 full parts which will equal 4 1/2.