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Areas Related to Circles

Circle is a simple closed curve. Is it a polygon?? If not, then does it exhibit any special properties? Let us find out with the help of the given video.



A circle exhibits various interesting properties which make it a special geometric figure.

Let us discuss the same. 

Minor and major arc: 

An arc less than one-half of the entire arc of a circle is called the minor arc of the circle, while an arc greater than one-half of the entire arc of a circle is called the major arc of the circle.

Semicircular arc:

Diameter of a circle divides it into two congruent arcs. Each of these arcs is known as semicircular arc.

In the above figure, PQ is diameter which formed semicircular arcs PBQ and PAQ.  

Finding radius of a circle when its diameter is given:

We know that the radius of a circle is half of its diameter.

Let r be the radius and d be the di…

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