Area of Sector
Area of Sector
Area of sector
The circular region enclosed by two radii and the corresponding arc is called a sector of the circle.
Applying the unitary method and taking the whole area of the circle (of angle ) as
, we can obtain the required area as
Example The perimeter of a certain sector of a circle of radius 5.6 m is 27.2 m. Find the area of the sector.
Solution Let be the angle subtended by the arc AB at the centre. We have
we are given
5.6 + 5.6 + l = 27.2
11.2 + l = 27.2
l = 27.2-11.2= 16
If the area of a minor sector of a circle of radius 5 m is 22 | |||
| Right Option : B | |||
| View Explanation | |||
The area of a sector of perimeter 45 cm and radius 6 cm is ________________________ | |||
| Right Option : D | |||
| View Explanation | |||
A circular disc of radius 10 cm is divided into sectors with angles | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [10]
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
