If all the triangles and combined rectangles had their respective areas added. Triangle A (the top ) would have an area of 32 squares, and the bottom would be 33 squares. However if you solve for the area of the entire triangle , its 32.5. Therefore neither configuration is right on the correct cumulative area, The top triangle, if solved by adding the cumulative areas of the smaller triangles and rectangles is .5 square too small and the bottom one is actually .5 squares too big . Conclusion, its all done by squishing the y axis of the grid. No laws broken, its 3 card monty.