ramming Exercises 8. Turtle Graphics: Hypnotic Pattern se a loop with the turtle graphics library to draw the design shown in Figure 4-15. -15 Hypnotic pattern 19. Turtle Graphics: STOP Sign In this chapter, you saw an example of a loop that draws an octagon. Write a program that uses the loop to draw an octagon with the word "STOP displayed in its center. The STOP sign should be centered in the graphics window