Creating a square in sketchpad
3) To create a square turn the rectangle on it's long side.
a) Double click the upper left point.
b) Click once on the upper right point.
c) >Transform >Rotate - 90 degrees
d) Double click the new point way up to the left.
e) Select the upper left point of the rectangle.
f) >Transform >Rotate - 90 degrees
g) Select the points of the new square.
h) >Construct >Segments
i) g) Select the points of the new square again.
j) >Construct >Quadrilateral Interior