It's just that there are too many pictures, so you shouldn't draw on the left.

Reminder: Your "correct answers" are all wrong and misleading!

If both sides are "increased by 3 meters" as you said, it will not become an increase of 3+3=6 meters on both sides!

You only pay attention to the word "each", but in fact you don't pay attention to "a group of opposites" If you add "3 meters" to one side and "3 meters" to the right, the number added up on both sides will be a triangle! Together, the two triangles still get a rectangle with a width of 3 meters, so it should be drawn like someone else's daughter.

Your understanding of "each" should be as shown in the red line below: