Basic Geometrical Ideas

Exercise 4.2

1). Classify the following curves as (i) open or (ii) Closed

(a). Open

(b). Closed

(c). Open

(d). Closed

(e). Closed

2). Draw rough diagrams to illustrate the following.

(a). Open curve

(b). Closed curve

3). Draw any polygon and shade it’s interior.

4). Consider the given figure and answer the questions.

(a). is it a curve?

Yes, it is a curve.

(b). is it closed?

Yes, it is closed.

5). Illustrate, if possible, each one of the following with a rough diagram:

(a). A closed curve that is not a polygon.

(b). An open curve made up of entirely line segments.

(c). A polygon with two sides.

A polygon with two sides is not possible.

 

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