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All about Polygons Video Lecture | Mathematics (Maths) Class 6

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FAQs on All about Polygons Video Lecture - Mathematics (Maths) Class 6

1. What is a polygon?
Ans. A polygon is a closed figure made up of straight lines called sides. Each side of a polygon intersects exactly two other sides, and the sides do not cross over each other.
2. How can we classify polygons based on the number of sides?
Ans. Polygons can be classified into different types based on the number of sides they have. Some common classifications include: - Triangle: A polygon with three sides. - Quadrilateral: A polygon with four sides. - Pentagon: A polygon with five sides. - Hexagon: A polygon with six sides. - Heptagon: A polygon with seven sides. - Octagon: A polygon with eight sides. - Nonagon: A polygon with nine sides. - Decagon: A polygon with ten sides.
3. How can we determine the sum of the interior angles of a polygon?
Ans. The sum of the interior angles of a polygon can be determined using the formula: (n-2) * 180 degrees, where 'n' represents the number of sides in the polygon. For example, a triangle (n=3) has a sum of interior angles of (3-2) * 180 = 180 degrees, while a pentagon (n=5) has a sum of interior angles of (5-2) * 180 = 540 degrees.
4. Can a polygon have curved sides?
Ans. No, a polygon cannot have curved sides. By definition, a polygon is a closed figure made up of straight lines. If any of the sides of a figure are curved, it is not considered a polygon.
5. What is the difference between a regular polygon and an irregular polygon?
Ans. A regular polygon is a polygon in which all sides are equal in length and all angles are equal. Examples include a regular triangle, regular quadrilateral, and regular hexagon. On the other hand, an irregular polygon is a polygon in which the sides and angles are not all equal. Examples include an irregular pentagon, irregular heptagon, and irregular octagon.
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