mouse interaction w/ shapes

I made an interactive program that uses the mouse to determine a shape’s size and position:

void setup() {
size(500,500); 
}

void draw() { 

  background(200); 

  triangle(mouseX,mouseY,mouseX*0.5,mouseY/3,mouseY,mouseX);
 
  rect(mouseY*0.44,mouseX/3.2,mouseY/4+height/4-mouseX/5,mouseX/5+width/5-mouseY/4);
 
}