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# Given here are some figures.

Classify each of them on the basis of the following.

**(a)** Simple curve

**(b)** Simple closed curve

**(c)** Polygon

**(d)** Convex polygon

**(e)** Concave polygon."\

To do:

We have to classify each of the given figures on the basis of the following.

(a) Simple curve(b) Simple closed curve

(c) Polygon

(d) Convex polygon

(e) Concave polygon.

Solution:

We know that,

Simple curves:

Simple curves do not cross or intersect.

Simple closed curve:

Does not have end points and does not intersect.

Polygon:

A polygon is a closed plane or two-dimensional figure whose sides are straight line segments.

**Convex Polygon**:

A polygon is convex if it contains all the line segments connecting any pair of its points.

**Concave Polygon:**

A polygon that is not convex is said to be a concave polygon.

Therefore,

(a) Figures 1, 2, 5, 6 and 7 are simple curves

(b) Figures 1, 2, 5, 6 and 7 are simple closed curves.

(c) Figures 1 and 2 are polygons

(d) Figure 2 is a convex polygon.

(e) Figure 1 is a concave polygon.

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