Arc of a Circle
Arc of a Circle
Arc:
A continuous part of a circle between two points is called an arc for the circle. Consider ant two points on a circle say M and N. These points define two arcs. for the circle
Semi- Circle:
An arc which is defined by the end points of the diameter is called a semi-circle.
Minor Arc:
The arc whose length is less than the semi-circle it is called minor arc.
Major Arc:
The arc whose length is more than the semi-circle it is called a major arc.
Central Angle:
The angle which the arc subtends at the centre is called central angle. In the figure MON is the central angle. It is called the degree measure of the arc.
Sector:
The region between an arc and the two radii joining the centre to the end points of the arc is called a sector.
Minor Sector:
The sector formed by the minor arc is called minor sector. The sector formed by the two radii and the minor arc is called a minor sector.
Major Sector:
The sector formed by the major arc is called major sector. The sector formed by the two radii and the major arc is called a major sector.
Quadrant of a Circle:
The sector formed by an arc which is equal to one fourth of the circumference, is called a quadrant of the circle.
Which of the following statement / statements are not correct regarding the figure below
(1) AE is a minor arc. (2) EDB is a major arc. (3) Central measure of minor arc AB is 40. (4) Central measure of major arc AB is 130. | |||
| Right Option : A | |||
| View Explanation | |||
The central measures of the minor arc BD is _____________
| |||
| Right Option : C | |||
| View Explanation | |||
The central measures of the minor arc AE is _____________
| |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
One 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
10thAbhyas 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
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Eshan Arora
8thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thAbout 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
8thA 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.
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8thIt 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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Ayan Ghosh
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.
