The circle does not have the straight lines, as area of circle is the region that is generally occupied by the circle in the two relevant dimensional planes, and the user can easily find out the area of circle as through using the formula A= **πr ^{2}**, (Pi r-squared), at where, r is the radius of the circle, and the unit of the area is the square unit like as m

The area of a regular polygon is half its perimeter with the main times the apothem, and as long as the number of sides of regular polygon increases, the polygon effectively tends to the circle, and an apothem tends to the radius. Any type of given geometrical shape generally possess all its own area, and this area is effectively get referred to as the particular region which is effectively occupied by the shape in a 2D plane, and the area of the circle is covered by a complete cycle by the radius of circle in the 2D Plane.

The area of the circle is the measures for the related space, and origin which is effectively enclosed inside the circle, in simpler words, the area of the circle is mainly the total number of square units which lies at inside the circle. The area of a circle is the region that is generally occupied by a circle in the 2D Plane, the area of the circle is A= **πr**** ^{2}**, (Pi r-squared), at where, r is the radius of the circle, and the unit of the area is the square unit like as m

A circle is generally known as the closed plain geometrical shape, as it is the locus of a point which generally moves around to a fixed point at the fixed distance from the central point that is known as the radius of the circle. The radius of the circle is known as the line that which mainly join the centre of the circle to its outer boundary, and this is effectively represented as either through r, and R. In the formula of the area, and the circumference of a circle, the radius has the significant role.

The diameter of circle is mainly referred to as the line that tends to divide the circle in two equal major portions, and it is twice the radius of the circle, and is effectively get represented by the symbol ‘d’, and ‘D’.

The perimeter of the closed figure is effectively known to be the length of its total boundary, and while it comes to the circle, the perimeter is effectively known by several name, and it is generally referred to as the circumference of the given circle, and this circumference is also known as the total length of the boundary for the given circle the length of the straight line of the circle is known as the circumference.

The perimeter of the circle is equals to the length of its total boundary, and the length of the rope which mainly wraps around its boundary is equals to its circumference. The perimeter/circumference of circle= 2**π**r units, at where, the r is known as the radius of the given circle.

The symbol **π is read as ‘pi’, which is generally get referred to as the ratio of the circumference of given circle to its diameter.**

**The arc of the circle is a portion of the circumference, and from any two-points that mainly lie on the boundary of the circle the arcs could be effectively created that is a Minor Arc, and the Major **arc.

- Minor Arc: This is the shorter arc created by the two points.
- Major Arc: The longer arc which is created by the two points.

The area of a circle can be efficiently visualized as well as demonstrated by some of the following principal methods:

__Determining the area of a circle using a rectangle: __Circle is usually divided into 16 equal arcs and the area of the circle will be equal to the parallelogram formed through the arcs cut in the circle and all such cuts have the same area and each arc has the same length is d' equal arc. If the number of circles is cut off, the parallelogram will look like a rectangle with length. __Determine area using triangles:__ Fill in the circumference of the circle and its height will be equal to the diameter of the circle with radius r as with concentric circles, like after clipping the circles as with the lines shown and actually spreading the lines so that the result is a triangle and the base of the triangle The triangle will be equal to the circle and its height will be equal to the radius of the circle.

** Inscribed angle:** An inscribed angle is the angle that is generally formed in between two chords as when they meet on the boundary of the circle.

** Central Angle:** A central angle is the angle that mainly formed while two-line segments meet such that one of the endpoints for both the line segment which is at the center, and the another is on the boundary of the circle.

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