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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