question_answer

Fill in the blanks. Any drawing (straight or non-straight) done without lifting the pencil may be a   P . A  Q   is the one that does not cross itself. A curve is said to be   R   . if its ends are joined. A   S   is a simple closed curve made up of line segments.            

A)

P	Q	R	S
Curve	Open curve	Closed	Line

           

B)

P	Q	R	S
Line	Curve	Open	Line

           

C)

P	Q	R	S
Curve	Simple curve	Closed	Polygon

           

D)

P	Q	R	S
Curve	Closed curve	Open	Circle