Question 2 Exercise 9.2 Class 9 | Chapter 9 | Circles | Solved | NCERT Maths CBSE board

[@2-minutememe327]

I m disappointed by seeing your subscribers, hope it will increase, as u r doing a lot of hard work sir.

[@Mathemafia]

Thank you. I hope for more students to connect in near future.

[@Adityagaming123patil]

I am also agree whit him sir

[@RestlessEdit]

Sir I am pleased with your teaching and explaination Thank you so much sir❤

[@shamsheralam517]

Today is my maths exam I revise almost all question by your video sir please wish me luck

[@rajenderasingh1527]

Sir your teaching style is really impressive. 😀😀

[@Mathemafia]

Thank you

[@IndieSia-m8c]

Thank you sooo much sir!!! Your explanation was one of the best in KZbin.... Sir i hope ur vdo reaches more n more people so that they can also see what a brilliant teacher u r! 🙏🏼❤

[@Mathemafia]

Glad you like it so much. Pls share it🙂

[@technicalmafia9239]

sir you are the best teacher in the world 😁😁😀😊😊

[@Mathemafia]

Thank you 👍

[@MUSIC_world-x8]

Sir your teaching is very expanding

[@Mathemafia]

Pls share it 🙃

[@ishastudycentre4871]

Sir your way of teaching is superb...

[@rajshreeshriwas1974]

Very nice explanation sir..! I understood each and every step very smoothly...! 🙏👏

[@Mathemafia]

Pls share it 🙂I need a lo.................t of support.

[@Kooyels_Vibrant_Strokes]

Wonderfully explained, Sir ! Your setup is very attractive 🤩🤩

[@Mathemafia]

Watch complete chapter here: kzbin.info/www/bejne/bafYm3SpnrOpf6M

[@ayushdwivedi8704]

You are the one of the best teacher

[@ayushdwivedi8704]

Ab mai 10.4 kaa question no.,2 dekh raha huu

[@TechnoKaustubhOfficial]

You are a Besst Teacher I clear Lots Of Concept 🙏🙏😊😊

[@Mathemafia]

Glad to hear that. Please share it 🙂

[@Unknowneditz-b6d]

Your way of explaining is very clean and easy❤

[@mamtamogre11]

Sir your teaching is superb......😊🎉

[@jeitce]

Thank you very nice explanation 👍👍

[@Mathemafia]

Thank you and welcome. Pls share it with your friends 🙂

[@aadvikyadav1535]

Sir you're the best because, i watch many video's but you're video is very very best sir..... Thanku sir

[@Mathemafia]

That is really good to know. 👍

[@hullurappam859]

Very good explanation sir

[@hullurappam859]

Explanati in English sir

[@sarthakmundhe310]

Sir I am saying a very important words of your life don’t see the bad comments or dislike or my KZbin videos are not good don’t demotivate your self you are a diamond you teach very nice . I think my words will go in your heart or you understand that thank myself is Sarthak Mundhe

[@Mathemafia]

Thank you very much Sarthak. Your words mean a lot to me. ,,,🙏

[@sarthakmundhe310]

It's ok

[@sarthakmundhe310]

I have subscribed your channel don't worry I am with you

[@Mathemafia]

@@sarthakmundhe310 thank you 👍

[@sarthakmundhe310]

You are online sir

[@Tech_it_out07]

Thankyou so much sir ❤aap bhot aacha padhate ho ❤❤

[@lavanyasharma3066]

From my opinion this is the best youtube channel to study maths.. thank you sir wonderfully explained, I don't have any doubts ❤

[@Mathemafia]

So nice of you. Such messages have kept me going. Pls share it 🙂

[@noharpatle7867]

Sir your set up is just too good this attracts me .

[@Mathemafia]

Thank you. I have recently purchased digital panel. I was creating class 10 Videos with the same setup but now onwards I will be using digital panel. I have adjusted the lights and all today. I will try to upload one video tomorrow with adjusted lights. Let me know about it tomorrow.

[@milichallenges4058]

Sir aap bohot acha samjate ho sir ase hi samjana aur hamre number ache lane mai madad karna thank u sir for good explanation

[@sahilsheoran1562]

Very very nice explanation sir ❤️❤️❤️

[@tanmoytechno1331]

Your teaching style is so good I need him in my school❤

[@Mathemafia]

That will be great 👍

[@nanideni3991]

Sir your dash board design are very good i love it,💀💀💖💖🤩

[@Mathemafia]

Thanks. Glad you like it! 😊

[@subhashcharaya3323]

Thank you sir tommorow will be my exam I don't do anything but I can do with your all videos

[@Mathemafia]

All the best

[@nanideni3991]

4 years hogiya par bhi ap itna purana comment ki reply kertai That's good 👍

[@SHema-eu1wd]

Sir your videos help me a lot thankyou

[@Mathemafia]

Most welcome

[@Lily_Army_Girl_]

Sirr what reason should I write for OE=OF ( should I write theorem 9.3)...

[@drawingwithmayank]

Write theorem 9.5

[@sonukumari8787]

Your explanation was very nice 👍

[@nanideni3991]

Han pata hai na sir ko bolnai ke jaroorat🤡🤡

[@Shagun99999]

Good sir I’m going to subscribe your channel ❤

[@sanchitduggal5110]

Very good representation

[@crsffgaming5031]

i hope you have 40k subscribers in only 1 week.

[@Mathemafia]

Thanks for good wishes but that's seem quite unlikely ☺️

[@crsffgaming5031]

if we ~= two triangles so we eq the sides and angles not congruent. this is the mistake in your video.

[@crsffgaming5031]

reply?

[@Mathemafia]

@@crsffgaming5031It's not a mistake but definitely working against my channel because most of the students have never learned about this concept. Watch this video and then let me know if I have mentioned anything wrong in this tutorial :) kzbin.info/www/bejne/nJCWdoWpg8eno9E

[@armanffmax7103]

Mind blowing sir essa to bade bade channel wale bi nahi padhate

[@Mathemafia]

Pls share it with your friends/classmates. I need a lot of support. 🙏

[@farhan_qureshi_07]

Thankkkkkuhhhhhh sir u are best teacher in the world ❤

[@-vivek_pb-02]

BOHOT HI SONI TEACHING STYLE HAII SIRJI TUHADI. WAHEGURU JI SAB TE MEHR KARE .

[@Mathemafia]

Bohot hi sohna comment likheya tusi. Waheguru sab te mehar kare 🙏

[@apsarali8932]

Thank you sir

[@Mathemafia]

wc

[@Mathemafia]

For more class 9 videos, you can easily find and navigate all my KZbin videos here - mathemafia.com/

[@apsarali8932]

Ok sir

[@SamrudhKotian-n5h]

But sir what if the chords are diameter, then the proof fails, I guess. I am aware that then all the parts are radius. But mathematically it doesn't fit into the proof. Please correct me if I am wrong.😅 Because the triangles don't form.

[@SamrudhKotian-n5h]

Can I just use the congruent arcs to prove that DBP and CPA are isosceles. This can be done by proving the angle subtended by the congruent arcs. Isn't sir?

[@nanideni3991]

​@@SamrudhKotian-n5hkeep going on bro🎉🎉🎉

[@ishnoorkaur9417]

Sir ji tusi great ho 😃👍

[@Mathemafia]

Te tusi wi. Thanks for the comment.

[@Monikabobal2137]

Thank you sir you're teach very well

[@AtharwaSagar-yn9so]

I LOVE HOW YOU SAY MATHE MAFIA

[@NiveditaSingh-d3t]

Thank you sir nice explanation

[@richasharma8507]

Can we take the diameters as chords ? because then we can easily prove the concept as the radii will be equal.

[@Mathemafia]

Such questions need to be proved in a generic way. Diameter is a one specific case only and we cannot prove it for every pair of equal chord by proving it just one case.

[@tusharsharma8877]

Amazing explaination

[@Mathemafia]

Thank you

[@RavinderKumar-ko6td]

Thanks to you.

[@Mathemafia]

WC

[@Gamer6087]

Thank you so much sir . You are amazing

[@Mathemafia]

My pleasure Ritesh. If you are looking for class 9 tutorials, here is my website where you will find all my KZbin videos. It will be very easy for you to find a video, navigate and watch. I keep on updating this website on weekly basis. I will be really thankful for the feedback about this website - www.mathemafia.com/

[@Gamer6087]

@@Mathemafia Thank you so... much sir. Its help me a lot and I'm really happy that I watch Mathemafia because you make questions so easy to understand. Again Thank you 😇😇😇

[@Mathemafia]

@@Gamer6087 And you are welcome again. :) I am really glad that my videos are helpful.

[@nareshthakur5975]

Thanks sir mujhe ex 10.4 ke 1and2 q nhi samajh aa rhe the per aap ne samjha diya

[@Mathemafia]

You are most welcome. Acha lagta hai jab students ko videos ache lagte hain. Keep watching and writing. 👍

[@mohammadaneessalafi]

Thank you so much..👏🏻

[@IamNotYourFriendbg]

❤ Wish a million subscribers

[@IamNotYourFriendbg]

To you

[@unboxinggadgetsandmanymore4706]

Thanku so very much

[@Mathemafia]

Wc 👍

[@legendrygaming5201]

Thanks sir ❤❤

[@Mathemafia]

Welcome. Please share it 🙂

[@AlekhyaBliss]

Damnnn your videos are the literal best!!

[@anathiest1587]

You again helped me sir thanks a lot but I think there was a mistake while proving RHS(sequence) if I am not wrong but sir aap samjhate acha ho love u sir awesome

[@Mathemafia]

I am glad that my videos are helpful. Regarding the order while proving the RHS, it does not matter in which order you write the three statements. Ultimately one right angle, hypotenuse and one side should be proved congruent. No one will mark it incorrect. Though writing in the RHS order makes it more readable, but it is correct otherwise as well. 🙂 Keep watching and writing. I enjoy it.

[@sumitranawde43]

@@Mathemafia 3:43 sir you are saying equal as congruent

[@Mathemafia]

Watch this video to understand why I say "Congruent". kzbin.info/www/bejne/nJCWdoWpg8eno9E

[@Wings_80]

@@Mathemafia thank you sir

[@GargeeGotmare]

Thank you so much sir😊....sir atleast pls 2 question solve kijiye ek video me ....meri choti request h sir🙏🙏

[@VivekGameplay0]

Thank you sir because today is my exam ❤

[@Mathemafia]

Best of luck 🤞

[@Officialmanaspandey]

Sir i have that why you dont take AB +EP

[@Officialmanaspandey]

Please pinned this comment

[@gvaralakshmi8299]

very nice

[@Mathemafia]

Thank you

[@vaishnaviyd]

Thankyou sir ❤️❤️

[@Mathemafia]

Welcome

[@nadeemajiaz3671]

Can I draw perpendicular on pc instead of dc?

[@Mathemafia]

See PC is a part of DC only, hence this perpendicular is on PC as well. But you must be careful about it that PC is not a chord. When we draw a perpendicular on a chord from the centre of the circle, it bisects it. So perpendicular from the centre will bisect line segment DC (the chord), but not the line segment PC. Hope this is clear now.

[@nadeemajiaz3671]

@@Mathemafia God bless u

[@nadeemajiaz3671]

@@Mathemafia can u solve my one problem I can study for several hours continuously but can't focus

[@Mathemafia]

@@nadeemajiaz3671 You need to start enjoying your studies the way you enjoy your games. You must not fear from the failures. If you are not able to understand anything, don't worry about it. It could be possible that your source is not good enough. So change the source, read from somewhere else. Discuss questions with your family members, friends. Talk to yourself - identify the areas that you think need improvement. Read more about those, watch creative tutorials. Make a plan for the day. Don't just sit for hours to spend time on books or anything else. Set short term targets and long term targets for yourself - like I will finish this exercise within 2 days and I will complete this chapter within 5 days or whatever suits you. Planning will help cover your syllabus as well.

[@Mathemafia]

🙏

[@shalugarg6540]

Sir nice explanation, but. Sir congruent ki sign ki place par equal ka sign aana chaiya tha 🤔 congruent to equal show Krna ka bad hota ha

[@Mathemafia]

Ye dekh lo... sab samajh aa jaayega kzbin.info/www/bejne/nJCWdoWpg8eno9E

[@Beri.Taveesh]

thnkx sir

[@Mathemafia]

Wc

[@shashankgs-3280]

which pen do you use

[@Mathemafia]

Any sketch pen.

[@DevyanshJulka]

Superb

[@Khushi-oe4il]

4:49 this is not cpctc it's cpct❣️

[@Mathemafia]

This is a very common query for me 😊 Watch this tutorial that I have created to explain why I call it CPCTC. kzbin.info/www/bejne/kHiqm4egiNGlrJI

[@sreyasubash9850]

Brilliant, sir!!

[@julinbalu1107]

4:06 can you tell me why OE = OF

[@Mathemafia]

Because of this theorem. kzbin.info/www/bejne/oXbIi4ytnbt4qKc

[@aaryabaste]

There is a theorem that says that equal chords are equidistant from the centre

[@AvdeshSharma-m4j]

Sir shayad aap punjab se ho😅 right..

[@Mathemafia]

Aaho 😀

[@aaryabroshan4876]

8:20 😂

[@915himanshugupta7]

#400th like 😂

[@shantapatil8904]

Thank you sir to do so much efforts to teach us

[@Mathemafia]

You are most welcome. Please share it 🙏

[@asureshasuresh1268]

When we write in exame

[@PoojaDevi-uy4xc]

Aditya 🎉

[@KewalramSharma-eq5vb]

I am very intelligent

[@mynu7216]

Sir aap like ab pq inke uper line kyo lagate hol🤔🤔

[@Mathemafia]

It depicts that it is a line segment. This is what we draw on top: If it a line, we draw a small line on top with arrows on both sides. If it a ray, we draw a small line on top with an arrow on one side only. If it a line segment, we draw a small line on top with no arrows. Watch this video to understand it better: kzbin.info/www/bejne/jX-WnWSGir6CqLs Generally we skip writing these lines on top but it is a good practice to use.

[@vanshgoswami2119]

Intro ko 2x pa dekho

[@Divyanshuthakur2]

That is CPCT not CPCTC

[@Mathemafia]

Hehe... Quite a regular query for me. Watch this video why I say cpctc. kzbin.info/www/bejne/kHiqm4egiNGlrJI

[@kailashsen2289]

Sir ji sirf triangles ke congruent hone par hi uska sign lagaya jata hai par aapne to sare angles aur sides ke bich me bhi congruent ka sign laga rakha hau😂😂

[@Mathemafia]

Pehle ye video dekho fir sochna ki maine sahi kiya yaan galat :) kzbin.info/www/bejne/nJCWdoWpg8eno9E

[@amandhami9030]

Are you punjabii

[@Mathemafia]

Absolutely. Are you?

[@BeKaachi]

Sir after 4 days I have my maths exam what do I do I haven't done construction chapter yet and iam temsed and due to this I am not able to focus on my done topics even

[@Mathemafia]

Construction chapter will hardly take 2-3 hours if studied with good focus. Just watch my videos by pausing at times. Do not watch quickly at one go. Try to understand by pausing. It is easiest of the chapters. You will get it easily. If you face any issue while preparation, drop me a message on the relevant video. I will try to respond as soon possible. 4 Days are more than enough to revise the entire book twice :) Don't worry about it. Be confidant.

[@BeKaachi]

Actually sir I have gone to village and construction was taught in school and surface area was also lacking, surface area me mujhe practice karni h mujhe formulas yad h, polynomials me mene identities yad kr lu h par abhi q practice nhi ki h aur quadrilateral mene bahut pehle padha tha yo vo bhi revise krna h ,ab aap hi btao pehle kya kru kuch smjh nhi aa rha , me geometry pehle isliye kr rha hu kyoki vi 14 Mark's ki aayegi kal hindi ka paper h , fir English h , fir maths h , isliye 4 din h mere pas maths ke liye plss suggest some time table

[@BeKaachi]

Fir circles bhi bacha hua h kese hoga sab

[@Mathemafia]

Kaun kaun se chapters aa rahe hain exam mein?

[@Mathemafia]

My suggestion is to read those chapters first that you are confident about. That will help you gain confidence because you can quickly revise those. When you start geometry, complete it in one go. That will help save time. Watch construction chapter once before you sleep. This chapter is just like story reading. You will enjoy it and will get it quickly.

[@Sabir--KHAN-k]

Aap thoda jldi buck buck krte ho 🤬🤬🤬

[@GenieCoreAI]

BINOD

[@Abcc135]

Wc lost 🙃

[@muqeemrafiq]

Cpctc nahi hota ha cpct hota ha

[@Mathemafia]

लगी शर्त?

[@muqeemrafiq]

@Mathemafia sir plz in english or urdu..

[@Mathemafia]

@@muqeemrafiq Urdu aur hindi mein koi khas farak to nahin hai. Bas thodi vocabulary different hai aur wo bhi jyadatar ek doosre mein use hoti hain. میرا خیال ہے کی اس بات پر تم مجھ سے سہمت ہو کوئی اختلاف ہو تو بیان کریں

[@muqeemrafiq]

@@Mathemafia but sir likhna ma dono alag ha... 😶

[@muqeemrafiq]

@@Mathemafia ma sirf bolna chahta tha ki app na kya likha ha Hindi ma .....

[@manitakumari1170]

ACC. To me there is cpct instead of cpctc

[@Mathemafia]

Watch this video to understand why I call it cpctc. kzbin.info/www/bejne/kHiqm4egiNGlrJI

[@BeKaachi]

Sir plss reply on my reply

[@Mathemafia]

check your message

[@ranjeetsingh-qh1yb]

3:32 its not angle OEP congruent to angle OFP instead of congruent it will be *equal=

[@Mathemafia]

Aur agar main ye prove kar doon ki congruent hain angles ... तो?

[@UnpredictableShivam]

​@@MathemafiaSir shayad se jab angles corresponding aur equal hote hai tab congruent bol dete hai?

[@Mathemafia]

@@UnpredictableShivam Watch this tutorial and you will get why I say "Congruent". kzbin.info/www/bejne/nJCWdoWpg8eno9E

[@UnpredictableShivam]

@@Mathemafia yes sir dekh liya samajh me aagaya lagbhag lagbhag maine bhi sahi bola tha 😅

[@shauryaananta946]

Thank u so much for ur wonderful explanation

[@Mathemafia]

My pleasure. Please share it 🙂

[@Lily_Army_Girl_]

Sirr what should I write for OE=OF (should I write theorem 9.3)..