Question

Any drawing (straight or non-straight) done without lifting the pencil may be called as a curve. In this sense, a line is also a curve. A simple curve is the one that does not cross itself. It is said to be closed if its ends are joined. A polygon is simple closed curve made up of line segments.

1. Which of the following are simple closed curves?
A) Fig. a, b, c, f, g, h, I, j
B) Fig. d, e, g
C) Fig. a, b, c, d, e, f, g, h, I, j
D) All the figures

2. Figures (d) and (e) are called as ________.
A) polygons
B) simple closed curves
C) complex curves
D) irregular simple closed curve
3. Which of the following are polygons?

A) All the figures
B) Fig. a, b, c, f, g, h, i, j
C) Fig. a, b, c, f, h, i
D) Fig. d, e, g, j



4. How many of the given figures are simple closed curves but not polygons?

A) 1
B) 2
C) 3
D) 4

Answer 1

Answer:

1 . B

2 . B

3. A

4 . C

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