# 3. Challenges 1

Each of these can be done in 4 lines of code, and one is `import turtle`.

Do these challenges in the Python IDLE editor. You will first have to do sheet Writing your own programs using IDLE

In only 4 lines of code (each). Only the 1st need be 4 lines, the others can be 3 lines, as you only have to do `import turtle` once.

> If for each shape we end up where we start, and facing the same way. Then how many times do we turn? What is that in degrees? So for a square we do that in 4 chunks. That is `360/4`. What would it be for a triangle, for a hexagon …

- Draw a square
- Draw a triangle
- Draw a hexagon
- Draw a 20 gon (that is a 20 sided shape).

> What would happen if instead of turning 360°, we turned 2×360°? (in python that is `2*360`).

Try some shapes with 5,7,8,9 … sides where the turtle turns 2×360°, or 3×360° or …

How do you need to change `360/n` where `n` is the number of sides.

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