Concentric Circles Problems
Concentric Circles Problems
Concentric Circles: The circle which have common centre point and different radius are called concentric circles.
Illustration: Two concentric circles with centre O have, A, B, C, D as the points of intersection with the line l as shown in the diagram. If AD = 12 cm and BC = 8 cm, find the lengths of AB, CD, AC and BD.
SOLUTION Since Similarly, Now, Also, and, |  |
Illustration: Two concentric circles and
with centre O have, A, B, C, D as the points of intersection with the line l as shown in the diagram. If AD = 8 cm and BC = 6 cm, and the distance of the chord from centre is 2 cm,find the length of radius of two circles.
SOLUTION Since Similarly, Now
Now
Hence radius of circle
| |
The figure shows two concentric circles and AD is a chord of larger circle. If the length of AP = 10 cm and BP = 3cm. Find the value of CD. | |||
| Right Option : D | |||
| View Explanation | |||
The figure shows two concentric circles and AD is a chord of larger circle. If the length of AP = 10 cm and BP = 3cm. Find the value of 3CD + 2AP | |||
| Right Option : A | |||
| View Explanation | |||
The figure shows two concentric circles and AD is a chord of larger circle. If the length of AB = 3 cm. Find the value of CD. | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [20]
We started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
8thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
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Cheshta
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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.
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Om Umang
10thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
Ayan Ghosh
8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
Shreya Shrivastava
8thUsually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
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Upmanyu Sharma
7thAbout 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.
Archit Segal
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Ayan Ghosh
8thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
