10.8. Chapter 10 Exercises¶

Fix 4 syntax errors in the code below to correctly draw a square

from turtle import # use the turtle library space = screen() # create a turtle space alisha = Turtle # create a turtle named alisha alisha.setheading(90) # point due north for sides in [1,2,3]: # repeat the indented lines 4 times alisha.forward(100) # move forward by 100 units alisha.right(90) # turn by 90 degrees

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The code currently draws a square. Change it so that it draws a triangle.

from turtle import * # use the turtle library space = Screen() # create a turtle space alisha = Turtle() # create a turtle named alisha alisha.setheading(90) # point due north for sides in [1,2,3,4]: # repeat the indented lines 4 times alisha.forward(100) alisha.right(90)

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Fix the code below to draw a rectangle. You will need to fix the indention on 3 lines.

from turtle import * space = Screen() carlos = Turtle() # repeat 2 times for i in [1,2]: carlos.forward(175) carlos.right(90) carlos.forward(150) carlos.right(90)

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Fix the errors in the code so that it draws an octagon.

from turtle import * space = Screen() liz = Turtle() liz.setheading(90) for sides in range(9) liz.forward(45) liz.right(50)

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Fill in values for x on line 5 and y on line 7 to allow the code below to correctly draw a pentagon.

from turtle import * # use the turtle library space = Screen() # create a turtle space will = Turtle() # create a turtle named will will.setheading(90) # point due north for sides in range(x): # repeat the indented lines will.forward(100) # move forward by 100 units will.right(y)

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Complete the code on lines 5 and 7 to draw a hexagon.

from turtle import * space = Screen() mia = Turtle() mia.setheading(90) for sides in mia.forward(40) mia.

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Finish the code on lines 1, 2, 3, 6 and 8 below to correctly draw a triangle.

from space = marie = # repeat for i in range(): marie.forward(100) marie.left()

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Finish the code to draw a 15 sided figure with each side having a length of 40.

from turtle import * space = Screen() hi = Turtle()

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Fix the indention in the code below to correctly draw 20 pentagons.

from turtle import * # use the turtle library from sys import * # use the system library setExecutionLimit(50000) # let this take up to 50 seconds space = Screen() # create a turtle space zoe = Turtle() # create a turtle named zoe zoe.setheading(90) # point due north for repeats in range(20): # draw the pattern 20 times zoe.forward(10) # Offset the shapes a bit zoe.right(18) # And turn each one a bit # This part makes a pentagon for sides in range(5): # repeat 5 times zoe.forward(50) # move forward by 50 unit zoe.right(72) # turn by 72 degrees

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The procedure below draws a square. Write code that uses the procedure to draw two squares connected by a line 50 units in length.

def square(aTurtle): for sides in range(4): aTurtle.forward(100) aTurtle.right(90)

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Fix the following code below to draw a circle of turtles using the stamp procedure. You will need to change 3 lines.

from turtle import * space = Screen() jose = Turtle() jose.shape("turtle") jose. for size in range(): jose.forward(50) jose.stamp() jose.forward() jose.right(36)

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Complete the code where the x's are so that the code draws 20 triangles.

from turtle import * from sys import * # use the system library setExecutionLimit(50000) # let this take up to 50 seconds space = Screen() t = x t.setheading(90) for repeats in range(x): t.color("blue") t.forward(10) t.left(18) for sides in range(x): t.color("green") t.forward(x) t.right(x)

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Rewrite the following code to create a procedure to draw a square with a turtle. Pass the turtle and the size of the square as input (parameters) to the procedure.

from turtle import * # use the turtle library space = Screen() # create a turtle space alisha = Turtle() # create a turtle named alisha alisha.setheading(90) # point due north for sides in [1,2,3,4]: # repeat the indented lines 4 times alisha.forward(100) # move forward by 100 units alisha.right(90) # turn by 90 degrees

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Currently, the code has a turtle drawing a straight line. Add 2 lines of code (1 before the loop and 1 in the loop) to make the turtle stamp in the line.

from turtle import * space = Screen() tess = Turtle() tess.color("blue") tess.shape("turtle") for size in range(5, 60, 2): tess.forward(size)

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Rewrite the following code to create a procedure to draw a rectangle with a turtle. Pass the turtle and the length and width of the rectangle as parameters to the procedure.

from turtle import * space = Screen() carlos = Turtle() # repeat 2 times for i in [1,2]: carlos.forward(175) carlos.right(90) carlos.forward(150) carlos.right(90)

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Complete the code so that the turtle stamps a square pattern 20 times (it should look like a circle enclosing a couple of circles if you use a turn angle of 18)

from turtle import * from sys import * # use the system library setExecutionLimit(50000) # let this take up to 50 seconds space = Screen() zoe = Turtle()

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Create a procedure to draw 4 turtles at the 4 corners of a square using the stamp procedure.

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Create a procedure that takes in a turtle and integer parameter. The procedure should stamp a turtle shape into a circle in 20 steps with the forward number being equal to the parameter.

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Write a procedure that takes a turtle and a number of sides as parameters and draws a polygon with that number of sides.

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Write a procedure that takes a turtle, an int for the number of sides for a polygon, and an int for the number of times to draw that polygon. The procedure should draw that polygon that number of times in a circular path.

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10.8. Chapter 10 Exercises¶