import turtle

screen = turtle.Screen()
screen.setup(400, 400)
screen.bgcolor('skyblue')

pen = turtle.Turtle()
pen.hideturtle()
pen.speed(0)

def draw_circle(radius, color):
    pen.penup()
    pen.goto(0, -radius)
    pen.pendown()
    pen.color(color)
    pen.begin_fill()
    pen.circle(radius)
    pen.end_fill()

draw_circle(100, 'red')
draw_circle(70, 'white')
draw_circle(40, 'red')

screen.mainloop()

_{Project 2 — Step 1 of 5}

⭐ Step 1 — Draw the target

➡️ Draw an archery target made of three rings.

A target is just three circles of different sizes, stacked: big red, medium white, small red. Turtle draws circles with pen.circle(radius).

To draw three concentric circles, we’ll write a little helper function draw_circle(radius, color) so we don’t have to repeat the same 6 lines three times.

✏️ What to type

In the editor below, between pen.speed(0) and screen.mainloop(), add this:

def draw_circle(radius, color):
    pen.penup()
    pen.goto(0, -radius)
    pen.pendown()
    pen.color(color)
    pen.begin_fill()
    pen.circle(radius)
    pen.end_fill()

draw_circle(100, 'red')
draw_circle(70, 'white')
draw_circle(40, 'red')

import turtle

screen = turtle.Screen()
screen.setup(400, 400)
screen.bgcolor('skyblue')

pen = turtle.Turtle()
pen.hideturtle()
pen.speed(0)

# Add draw_circle() function and three draw_circle() calls here

screen.mainloop()

Tap ▶ Run. You should see a red and white bullseye in the middle of a sky-blue square. 🎯

🔍 Tip

pen.goto(0, -radius) first — turtle draws circles upward from where the pen is, so we start at the bottom of the circle to end up centred on (0, 0).

💡 If you get a red error

• Check the def line ends with ():.
• Make sure the body lines are pushed in by 4 spaces (use Tab).

Next → Step 2

_{⬅ Back to Project 2}

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_{Adapted from Raspberry Pi Foundation — Target Practice under CC BY-SA 4.0.}