(a) As it is not a closed figure, therefore, it is not a polygon.
(b) It is a polygon because it is closed by line segments.
(c) It is not a polygon because it is not made by line segments.
(d) It is not a polygon because it not made only by line segments, it has curved surface also.
Explain why the bulb would not glow in the arrangement shown in Fig. 9.13.
Draw:
1) a leaf
2) a taproot and
3) a flower,
you have studied for Table 4.3