Answer: Turtle Challenge #231

Here’s what the code from Turtle Challenge #231 draws. This picture was made by running the code for real.

The answers

How many circles will the turtle draw? 15 circles, one each time round the loop.

Why does the turtle turn 24 degrees after each circle? Because 15 × 24 = 360, so the circles spread evenly all the way round, like petals on a flower.

What colours will the circles be? They take turns: forestgreen, limegreen.

How the code works

t.circle(60) draws a whole circle and brings the turtle back to the same spot. Turning a little between circles makes a flower pattern.

import turtle

t = turtle.Turtle()
t.speed(0)
t.pensize(2)
colours = ["forestgreen", "limegreen"]

for petal in range(15):
    t.pencolor(colours[petal % 2])
    t.circle(60)
    t.left(24)

t.hideturtle()
turtle.done()