// arcdemo D. Parson Feb. 13, 2018

void setup() {
  size(500,500);
  background(255);
}

void draw() {
  background(255);
  fill(255,255,0);
  stroke(0);
  //noFill();
  arc(width/2, height/2 , 100, 75, radians(90), radians(200)); // stroke only around outside
  //arc(width/2, height/2 , 100, 75, radians(90), radians(200), PIE); // strokes on all sides
  // arc(width/2, height/2 , 100, 75, radians(90), radians(200), CHORD); // same as PIE except not through the center
  //arc(width/2, height/2 , 100, 75, radians(90), radians(200), OPEN); // no stroke connecting endpoints
}