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(i) 3 slides

(ii) 4 slides

(iii) 6 slides

Answer :

A polygon is said to be a regular polygon, if all its sides and interior angles and exterior angles are equal.

The regular polygon of:

(i)3 sides= equilateral triangle.

(ii)4 sides= square.

(iii)6 sides = regular hexagon

.

- 1. 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
- 2.How many diagonals does each of the following have? (a) A convex quadrilateral (b) A regular hexagon (c) A triangle.
- 3.What is the sum of the measures of the angles of a convex quadrilateral? Will this property hold if the quadrilateral is not convex? (Make a non-convex quadrilateral and j try!)
- 4. Examine the table. (Each figure is divided into triangles and the sum of the angles deduced from that.) What can you say about the angle sum of a convex polygon with number of sides? (a) 7 (b) 8 (c) 10 (d) n
- 6.Find the angle measure x in the following figures.
- 7. (a) Find x + y + z (b) Find x + y + z + w

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