5 triangles

void setup()

{

  size(500,500);

  noLoop();

}

void draw()

{

  for (int i = 0 ; i<>

  {

    drawTriangle(int(random(500)), int(random(500)), int(random(500)), int(random(500)), int(random(500)), int(random(500)));

  }

}

void drawTriangle(int x0, int y0, int x1, int y1, int x2, int y2)

{

  line(x0, y0, x1, y1);

  line(x1,y1, x2,y2);

  line(x2, y2, x0, y0);

}