Understanding Polygons

Q. A closed figure made of straight lines only is called a _____.

1. circle
2. cylinder
3. cone
4. polygon

Q. Polygons are:

1. Closed by straight lines only
2. Closed by straight lines as well as a curve
3. Open shapes
4. All of the above

Q. Select the correct statement for the following shape.

1. It is an open shape.
2. It is a closed planar figure made of straight sides.
3. It has inclined lines so it is not a polygon.