Changing the Size of Rectangles or Squares To change the size of a rectangle or a square: In an open sketch, drag a side or vertex. Parent topicRectangles Sketching Corner Rectangles and Squares Sketching Center Rectangles and Squares Sketching 3 Point Corner Rectangles and Squares Sketching 3 Point Center Rectangles and Squares Sketching Parallelograms Changing Line Properties in Rectangles and Squares Specifying Construction Lines and Centerlines Rectangle PropertyManager