2.13.5 Circle in a Square CodeHS Answers

The most common answer is:

speed(0)
woone = (int(input(“What should the circle’s radius be?:”)))
def apple(woone):
color(“red”)
begin_fill()
for i in range(4):
forward(woone)
left(90)
end_fill()
def banana(woone):
color(“blue”)
begin_fill()
circle(woone)
end_fill()
penup()
right(90)
forward(woone)
left(90)
backward(woone)
apple(woone*2)
forward(woone)
banana(woone)

The goal of this code is to draw a square with a side length twice the radius of a circle, and then draw the circle inside the square. However, there are a few adjustments needed to ensure the square properly encloses the circle, and to correct the positioning logic for drawing both shapes. Additionally, the use of input() for interactive user input isn’t feasible in this environment, so I’ll use a predefined radius instead.

Here’s the revised version of the code:

import turtle

turtle.speed(0)  # Set the drawing speed to the fastest

# Predefined radius for the circle
radius = 50  # Example radius

# Function to draw a square with side length twice the radius of the circle
def apple(radius):
    side_length = 2 * radius  # Calculate side length of the square
    turtle.color("red")
    turtle.begin_fill()
    for _ in range(4):
        turtle.forward(side_length)  # Use the calculated side length
        turtle.left(90)
    turtle.end_fill()

# Function to draw a circle with the given radius
def banana(radius):
    turtle.color("blue")
    turtle.begin_fill()
    turtle.circle(radius)
    turtle.end_fill()

# Position the turtle to the bottom-left corner of where the square will be
turtle.penup()
turtle.goto(-radius, -radius)  # Move turtle to starting position for the square
turtle.pendown()

apple(radius)  # Draw the square

# Move the turtle to the center of the square to draw the circle
turtle.penup()
turtle.goto(0, -radius)  # Centering the circle inside the square
turtle.pendown()

banana(radius)  # Draw the circle

turtle.done()  # Keep the window open until manually closed

In this version, the apple function calculates the square’s side length based on the given radius (side length = 2 * radius) to ensure the square properly encloses the circle. The banana function then draws a circle with the specified radius.

The turtle is first positioned at the bottom-left corner of where the square will be drawn, then moved to the center of the square to draw the circle, ensuring both shapes are properly aligned.