size(500, 500);
background(255);

stroke(0);
strokeWeight(5);
triangle(300, 350, 200, 350, 250, 150);

fill(200, 10, 10, 150);
stroke(255, 0, 0);
strokeWeight(10);
ellipse(250, 150, 100, 100);

ellipse(250, 500, 600, 300);