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Perimeter of Regular figures - 1 Video Lecture | Mathematics for Class 6

FAQs on Perimeter of Regular figures - 1 Video Lecture - Mathematics for Class 6

1. What is the perimeter of a regular polygon?

Ans.The perimeter of a regular polygon is the total length of all its sides. Since all sides of a regular polygon are equal in length, you can calculate the perimeter by multiplying the length of one side by the total number of sides. For example, if a regular hexagon has each side measuring 4 cm, its perimeter would be 4 cm × 6 = 24 cm.

2. How do you calculate the perimeter of a square?

Ans.To calculate the perimeter of a square, you take the length of one side and multiply it by 4, since a square has four equal sides. For instance, if each side of a square measures 5 m, the perimeter would be 5 m × 4 = 20 m.

3. What is the difference between the perimeter of a regular polygon and an irregular polygon?

Ans.The perimeter of a regular polygon is calculated using the formula for equal sides, while the perimeter of an irregular polygon is calculated by adding the lengths of all its sides, which may vary in length. For example, the perimeter of a regular triangle with sides of 3 cm each is 9 cm, whereas an irregular triangle with sides measuring 2 cm, 3 cm, and 5 cm has a perimeter of 10 cm.

4. Can the perimeter of a circle be calculated, and what is it called?

Ans.Yes, the perimeter of a circle can be calculated, and it is called the circumference. The formula for calculating the circumference is C = 2πr, where r is the radius of the circle. For example, if the radius of a circle is 3 cm, the circumference would be C = 2 × π × 3 cm, which is approximately 18.84 cm.

5. Why is it important to learn about the perimeter of regular figures?

Ans.Learning about the perimeter of regular figures is important because it helps in understanding basic geometry concepts, which are essential for solving real-world problems related to space, design, and construction. Moreover, it lays the foundation for more advanced mathematical concepts and applications in various fields such as architecture, engineering, and art.

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Sep 11, 2025 Last updated

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