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What is a Circle?
A circle closed plane geometric shape. In technical terms, a circle is a locus of a point moving around a fixed point at a fixed distance away from the point. Basically, anything which is round in shape is a circle. The fixed distance from the point is the radius of the circle. In real life, you will get many examples of the circle such as a wheel, pizzas, a circular ground, etc
Area of a Circle:
The area of a circle is the region occupied by the circle in a two-dimensional plane. It can be determined easily using a formula, Οr2, where r is the radius of the circle. Apart from the area, circles have a radius, diameter, and circumference, as its property.
This circumference is similar to the perimeter, where the total distance covered by the boundary of the circle is evaluated.
If the area of a given circle with radius r units is Οr2 square units, then an area of semi-circle and quarter-circle with the same radius will be equal to Οr2 / 2 and Οr2 /4 square units respectively.
Area and Circumference of a Circle
For a circle, its area can be calculated by measuring the region that is enclosed by its boundary. The perimeter of a circle or its circumference is defined as the length of the circle’s boundary.
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