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 sector of 120 degree cut out from a circle has an area of 66/7 sq cm. The radius of the circle is | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [10]
About 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
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thMy 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
7thBeing 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
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Om Umang
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Barkha Arora
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
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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.
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8thMy 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.
