You tend to travel faster when you are closer to the sun so when you travel faster, you are going to travel a farther distance when you are a little bit further away you will move a little bit slower speed and you are going to travel a little bit shorter distance but if you were able to cover the same amount of area -- believe it or not-- those two areas that are shaded in are going to have equal areas because it is equal amount of time because it is one month of time 