Mathematics can be both fantastic and challenging at the same time. Specially in class 10 when students have to give board paper. So our NCERT class 10 Mathematics Chapter 11 Areas Related to Circles notes will provide conceptual clarity to the students. It will work like a bridge for students between class room theory lecture and solving exercise at home.
These Class 10 Chapter 11 Areas Related to Circles Notes is a masterstroke for students who want to pursue a career in science, like becoming an engineer, scientist etc. Most of the concept given in class 11 maths have already been introduced in class 10 maths. So these notes are also the foundation of class 11 math.
Class 10 Maths Chapter 11 Areas Related to Circles Notes
Chapter 10: Circles Notes
Chapter 12: Surface Areas and Volumes Notes
Below we have also given most important topics of NCERT Class 10 Mathematics chapter 11 Areas Related to Circles Notes. Students should revise these notes regularly to remember the chapter properly.
Important Topic of Areas Related to Circles
- A circle is a set of points in a plane that are at an equal distance from a fixed point. The fixed point is called the centre of circle and equal distance is called the radius of the circle.
- A line segment joining the centre of the circle to a point on the circle is called its radius.
- A line segment joining any two points of a circle is called a chord. A chord passing through the centre
- of circle is called its diameter.
- The distance around the boundary of the circle is called the perimeter or the circumference of the circle.
Circumference of a Circle
The perimeter of a circle is the distance covered by going around its boundary once. The perimeter of a circle has a special name: Circumference, which is 𝝅 times the diameter which is given by the formula 2𝝅 r
Segment of a Circle
A circular segment is a region of a circle that is “cut off” from the rest of the circle by a secant or a chord.
Sector of a Circle
A circle sector/ sector of a circle is defined as the region of a circle enclosed by an arc and two radii. The smaller area is called the minor sector and the larger area is called the major sector.
Angle of a Sector
The angle of a sector is the angle that is enclosed between the two radii of the