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Draw rough diagram to illustrate the following:

(i) Open curve

(ii) Closed curve

Classify the following curves as open or closed:

Draw a polygon and shade its interior. Also draw its diagonals, if any.

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

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

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

(iii) A polygon with two sides.

Following are some figures: Classify each of these figures on the basis of the following:

(i) Simple curve (ii) Simple closed curve

(iii) Polygon (iv) Convex polygon

(v) Concave polygon (vi) Not a curve

How many diagonals does each of the following have?

(i) A convex quadrilateral

(ii) A regular hexagon

(iii) A triangle

What is a regular polygon? State the name of a regular polygon of

(i) 3 sides

(ii) 4 sides

(iii) 6 sides