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Learn About Circles Video Lecture | Maths for UKG

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FAQs on Learn About Circles Video Lecture - Maths for UKG

1. What is the definition of a circle in geometry?
Ans. A circle in geometry is a closed curve where all points are equidistant from a fixed point called the center.
2. How is the circumference of a circle calculated?
Ans. The circumference of a circle is calculated using the formula C = 2πr, where C is the circumference and r is the radius of the circle.
3. What is the relationship between the diameter and radius of a circle?
Ans. The diameter of a circle is twice the length of its radius. In other words, the diameter is equal to 2 times the radius.
4. How is the area of a circle calculated?
Ans. The area of a circle is calculated using the formula A = πr^2, where A is the area and r is the radius of the circle.
5. Can a circle be defined by its diameter instead of its radius?
Ans. Yes, a circle can also be defined by its diameter. The relationship between the diameter and radius is that the diameter is twice the length of the radius.
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