This will be the right boundary of the second trapezoid. This is the right boundary of the third trapezoid. This will be the right boundary of the fourth trapezoid. fourth trapezoid, and then finally this will be the route boundary of the fifth trapezoid. And since we're traveling, we're going from one to six, so we're traveling six minus one in the x direction, and I want to split it into five sections, the width of each trapezoid is just going to be equal to one. And so if we say that the width of a trapezoid is delta x, we just can now say that delta x is equal to one. So let's set up our trapezoids.