Circles

In this topic, a brief introduction of a circle is discussed. The circles that are found in our daily life are also introduced here. It also explains the radius and diameter of a circle with the help of an activity.

Through this topic, we will understand the basic terms related to circles in detail. We will understand the definition of radius and arc of the circles. It discusses the different types of an arc with the help of figures.

In this topic, we will learn the concept of an angle subtended by a chord with the help of various figures. It discusses the various theorems based on this concept. Moreover, it includes some examples based on this concept.

From this topic, we will learn about the line perpendicular from the centre of a circle to a chord in brief with the help of some examples and figures. We will also learn to prove the various theorems based on this concept.

In this topic, we will learn about the chords and their distance from the centre of the circle through examples. Some activities and theorems are also discussed based on this concept. Furthermore, it consists of some examples based on it.

This topic includes a theorem describing the angle subtended by an arc of a circle. It describes complete proof of the statement. Lastly, it covers some examples in which this theorem is used to solve them.

In this topic, we will study some properties of the cyclic quadrilaterals. We will learn various results based on the angles of cyclic quadrilaterals. Moreover, we will come across some examples related to the features of a quadrilateral.