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2.4.6 4 Columns 2.0 CodeHS Answers

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The most common answer is:

penup()
backward(200)
for i in range (1):
left(90)
forward(200)
right(90)
forward(100)
left(270)
pendown()
forward(400)
left(90)
penup()
forward(100)
right(270)
pendown()
forward(400)
penup()
right(90)
forward(100)
right(90)
pendown()
forward(400)

This code appears to be an attempt to draw 4 vertical columns, but there are several inefficiencies and a bit of redundancy in the way it’s structured. Furthermore, the loop for i in range (1): only iterates once, which doesn’t leverage the power of loops for repetitive actions.

Here’s a revised version that simplifies the process and correctly utilizes a loop to draw 4 columns efficiently:

import turtle

# Setup turtle
turtle.speed(1)  # Set drawing speed

# Move turtle to starting position
turtle.penup()
turtle.backward(300)  # Adjust starting position as needed

# Draw 4 columns
for _ in range(4):
    turtle.left(90)  # Turn turtle to face upwards
    turtle.pendown()  # Start drawing
    turtle.forward(400)  # Draw column
    turtle.penup()  # Stop drawing
    turtle.right(90)  # Reorient to move horizontally
    turtle.forward(100)  # Move to the next column start position
    turtle.right(90)  # Turn turtle to face downwards
    turtle.forward(400)  # Move back down to align with base without drawing
    turtle.left(90)  # Reorient turtle to original direction

turtle.done()  # Prevent the window from closing immediately

This version efficiently uses the turtle graphics commands to draw 4 vertical columns. It starts by moving the turtle to an initial position. Then, for each column, it performs the following steps:

  1. Turns the turtle to face upwards.
  2. Lowers the pen to start drawing.
  3. Draws a vertical line (column) upwards.
  4. Lifts the pen and moves horizontally to the right to position for the next column.
  5. Turns and moves downwards without drawing to return to the base line.
  6. Adjusts orientation to start the next column.

This approach reduces the amount of code needed and correctly utilizes loops and turtle movements to create the desired output.

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Quizzma Team

The Quizzma Team is a collective of experienced educators, subject matter experts, and content developers dedicated to providing accurate and high-quality educational resources. With a diverse range of expertise across various subjects, the team collaboratively reviews, creates, and publishes content to aid in learning and self-assessment.
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