PLEASE HELP ALL 4 QUESTIONS PLSSSS !! I NEED HELP

PLEASE HELP ALL 4 QUESTIONS PLSSSS I NEED HELP class=
PLEASE HELP ALL 4 QUESTIONS PLSSSS I NEED HELP class=
PLEASE HELP ALL 4 QUESTIONS PLSSSS I NEED HELP class=
PLEASE HELP ALL 4 QUESTIONS PLSSSS I NEED HELP class=

Answer :

1 . Is a pyramid cause if you fold all the sides up that’s the shape it makes