when rearanged the triangle area, counting the square, is bigger. I'll try to explane this by a step by step post. The bottom left of the graph be the origin.
notice all we are adding is just 1 square unit. 1 is not that big and when split and added to 25 other units, it can be hard to notice the change, expesily if grouped together.
( u might be like this guy right now
so let me cleat it up with an example)
an example is,
a 10 by 10 square on the graph is increased in size so that instead of 100 area it has 101 area, the change can be hard to notice, very hard if you dont know what to look for.
( i hope your like this guy
who understands it now)