1) Gathering the data
Tiles in the shape of a trapezoid.
To cut the tiles in half along the median
The top base of each tile is 12 inches (length)
The bottom base is 16 inches
How long of a cut will John need to make so that he cuts the tiles along the median?
2) The median of a Trapezoid is given by
Median = 1/2 (Top base + Bottom Base)
So now let's calculate the median of each tile, trapezoid

3) So James needs to cut a line of 14 inches on each trapezoid tile.