Add a [Triangle] button that draws three triangles with 22 beams each, as on the figure below:
Draw in a cycle by moving forward and rotating. In each step, increase the length of the forward step with 10 and rotate 120 degrees. Repeat 3 times for the three triangles.
If you have a problem with the above exercises, ask in the SoftUni forum: https://softuni.bg/forum.