Please help i need it fast
Trigonometry work

Show how you got your answer too please

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Can someone me out here number 4 plz

Def rotates 90 clockwise about point a to create d’ e’ f’. therefore, which equation must be true ?