[3 Points] command generates a rectangle with 3 points of the base and the height specified.
For the prompt
"Specify the start point of an rectangle edge"
specify the start point of an rectangel edge.
For the prompt
"Specify the end point of an rectangle edge"
, specify the end point of
the edge.
For the prompt
"Specify the height of the rectangle"
, specify a point that defines the
height of the rectangel.