Turtle: draw shapes) Write a program that draws a triangle, square, pentagon, hexagon, and octagon, as shown in Figure 3.6b. Note that the bottom edges of these shapes are parallel to the x-axis....

Turtle: draw shapes) Write a program that draws a triangle, square, pentagon, hexagon, and octagon, as shown in Figure 3.6b. Note that the bottom edges of these shapes are parallel to the x-axis. (Hint: For a triangle with a bottom line parallel to the x-axis, set the turtle’s heading to 60 degrees.)