Answer:
Why are you giving us the answer..?
What topic does this come under so I can research on it
- AC=Hypotenuse=20
- BC=Base=16
AB:-
Apply Pythagorean theorem





Now
- DE=AB/3=12/3=4
- EF=BC/3=16/3=5.3
- DF=AC/3=20/3=6.6
Now



Development proceeds towards greater complexity-
A pervasive characteristic of development is that children's functioning becomes increasingly complex—in language, social interaction, physical movement, problem solving, and virtually every other domain.
Self regulation-
controlling one's behavior, emotions, and thoughts in the pursuit of long-term goals. More specifically, emotional self-regulation refers to the ability to manage disruptive emotions and impulses.
symbolic and representational capacity-
something visible that by association or convention represents something else that is invisible
i may have all this wrong i’m not sure what you’re studying or what lesson you’re in